Home / 87,998.67-121,429.17-54,008.58

Finding the Fourth Proportional to 87,998.67, 121,429.17 and 54,008.58

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Solution

The fourth proportional to 87,998.67, 121,429.17 and 54,008.58 is: 74,526.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,998.67 : 121,429.17 = 54,008.58 : x
  2. Step 2: Convert to fraction form
    87,998.67/121,429.17 = 54,008.58/x
  3. Step 3: Cross multiply
    87,998.67x = 121,429.17 × 54,008.58
  4. Step 4: Simplify right side
    87,998.67x = 6,558,217,042.28
  5. Step 5: Solve for x
    x = 6,558,217,042.28/87,998.67
  6. Step 6: Final answer
    x = 74,526.32

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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.