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Finding the Fourth Proportional to 83,502.97, 115,146.22 and 63,132.89

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Solution

The fourth proportional to 83,502.97, 115,146.22 and 63,132.89 is: 87,056.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,502.97 : 115,146.22 = 63,132.89 : x
  2. Step 2: Convert to fraction form
    83,502.97/115,146.22 = 63,132.89/x
  3. Step 3: Cross multiply
    83,502.97x = 115,146.22 × 63,132.89
  4. Step 4: Simplify right side
    83,502.97x = 7,269,513,339.41
  5. Step 5: Solve for x
    x = 7,269,513,339.41/83,502.97
  6. Step 6: Final answer
    x = 87,056.94

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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.