Home / 87,930.59-121,346.47-53,957.85

Finding the Fourth Proportional to 87,930.59, 121,346.47 and 53,957.85

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Solution

The fourth proportional to 87,930.59, 121,346.47 and 53,957.85 is: 74,463.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,930.59 : 121,346.47 = 53,957.85 : x
  2. Step 2: Convert to fraction form
    87,930.59/121,346.47 = 53,957.85/x
  3. Step 3: Cross multiply
    87,930.59x = 121,346.47 × 53,957.85
  4. Step 4: Simplify right side
    87,930.59x = 6,547,594,238.69
  5. Step 5: Solve for x
    x = 6,547,594,238.69/87,930.59
  6. Step 6: Final answer
    x = 74,463.21

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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.