Home / 83,397.83-115,142.13-54,768.18

Finding the Fourth Proportional to 83,397.83, 115,142.13 and 54,768.18

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Solution

The fourth proportional to 83,397.83, 115,142.13 and 54,768.18 is: 75,614.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,397.83 : 115,142.13 = 54,768.18 : x
  2. Step 2: Convert to fraction form
    83,397.83/115,142.13 = 54,768.18/x
  3. Step 3: Cross multiply
    83,397.83x = 115,142.13 × 54,768.18
  4. Step 4: Simplify right side
    83,397.83x = 6,306,124,515.73
  5. Step 5: Solve for x
    x = 6,306,124,515.73/83,397.83
  6. Step 6: Final answer
    x = 75,614.97

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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.