Home / 83,127.57-124,691.30-20,798.07

Finding the Fourth Proportional to 83,127.57, 124,691.30 and 20,798.07

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Solution

The fourth proportional to 83,127.57, 124,691.30 and 20,798.07 is: 31,197.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,127.57 : 124,691.30 = 20,798.07 : x
  2. Step 2: Convert to fraction form
    83,127.57/124,691.30 = 20,798.07/x
  3. Step 3: Cross multiply
    83,127.57x = 124,691.30 × 20,798.07
  4. Step 4: Simplify right side
    83,127.57x = 2,593,337,892.20
  5. Step 5: Solve for x
    x = 2,593,337,892.20/83,127.57
  6. Step 6: Final answer
    x = 31,197.09

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.