Home / 87,850.76-121,184.56-55,575.37

Finding the Fourth Proportional to 87,850.76, 121,184.56 and 55,575.37

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Solution

The fourth proportional to 87,850.76, 121,184.56 and 55,575.37 is: 76,662.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,850.76 : 121,184.56 = 55,575.37 : x
  2. Step 2: Convert to fraction form
    87,850.76/121,184.56 = 55,575.37/x
  3. Step 3: Cross multiply
    87,850.76x = 121,184.56 × 55,575.37
  4. Step 4: Simplify right side
    87,850.76x = 6,734,876,526.80
  5. Step 5: Solve for x
    x = 6,734,876,526.80/87,850.76
  6. Step 6: Final answer
    x = 76,662.70

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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.