Home / 87,850.97-121,234.41-47,564.76

Finding the Fourth Proportional to 87,850.97, 121,234.41 and 47,564.76

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Solution

The fourth proportional to 87,850.97, 121,234.41 and 47,564.76 is: 65,639.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,850.97 : 121,234.41 = 47,564.76 : x
  2. Step 2: Convert to fraction form
    87,850.97/121,234.41 = 47,564.76/x
  3. Step 3: Cross multiply
    87,850.97x = 121,234.41 × 47,564.76
  4. Step 4: Simplify right side
    87,850.97x = 5,766,485,615.39
  5. Step 5: Solve for x
    x = 5,766,485,615.39/87,850.97
  6. Step 6: Final answer
    x = 65,639.41

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Half scale
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Double scale
Find fourth proportional to 87,851.97, 121,235.79 and 47,565.76
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.