Home / 87,841.87-121,222.40-47,555.73

Finding the Fourth Proportional to 87,841.87, 121,222.40 and 47,555.73

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Solution

The fourth proportional to 87,841.87, 121,222.40 and 47,555.73 is: 65,627.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,841.87 : 121,222.40 = 47,555.73 : x
  2. Step 2: Convert to fraction form
    87,841.87/121,222.40 = 47,555.73/x
  3. Step 3: Cross multiply
    87,841.87x = 121,222.40 × 47,555.73
  4. Step 4: Simplify right side
    87,841.87x = 5,764,819,961.26
  5. Step 5: Solve for x
    x = 5,764,819,961.26/87,841.87
  6. Step 6: Final answer
    x = 65,627.25

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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.