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Finding the Fourth Proportional to 81,545.73, 112,531.73 and 45,734.97

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Solution

The fourth proportional to 81,545.73, 112,531.73 and 45,734.97 is: 63,113.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,545.73 : 112,531.73 = 45,734.97 : x
  2. Step 2: Convert to fraction form
    81,545.73/112,531.73 = 45,734.97/x
  3. Step 3: Cross multiply
    81,545.73x = 112,531.73 × 45,734.97
  4. Step 4: Simplify right side
    81,545.73x = 5,146,635,066.92
  5. Step 5: Solve for x
    x = 5,146,635,066.92/81,545.73
  6. Step 6: Final answer
    x = 63,113.48

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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.