Home / 87,775.41-121,130.09-47,489.15

Finding the Fourth Proportional to 87,775.41, 121,130.09 and 47,489.15

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Solution

The fourth proportional to 87,775.41, 121,130.09 and 47,489.15 is: 65,535.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,775.41 : 121,130.09 = 47,489.15 : x
  2. Step 2: Convert to fraction form
    87,775.41/121,130.09 = 47,489.15/x
  3. Step 3: Cross multiply
    87,775.41x = 121,130.09 × 47,489.15
  4. Step 4: Simplify right side
    87,775.41x = 5,752,365,013.52
  5. Step 5: Solve for x
    x = 5,752,365,013.52/87,775.41
  6. Step 6: Final answer
    x = 65,535.04

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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.