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Finding the Fourth Proportional to 83,382.25, 125,073.11 and 64,434.40

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Solution

The fourth proportional to 83,382.25, 125,073.11 and 64,434.40 is: 96,651.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,382.25 : 125,073.11 = 64,434.40 : x
  2. Step 2: Convert to fraction form
    83,382.25/125,073.11 = 64,434.40/x
  3. Step 3: Cross multiply
    83,382.25x = 125,073.11 × 64,434.40
  4. Step 4: Simplify right side
    83,382.25x = 8,059,010,798.98
  5. Step 5: Solve for x
    x = 8,059,010,798.98/83,382.25
  6. Step 6: Final answer
    x = 96,651.40

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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.