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Finding the Fourth Proportional to 81,545.58, 112,538.51 and 45,737.89

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Solution

The fourth proportional to 81,545.58, 112,538.51 and 45,737.89 is: 63,121.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,545.58 : 112,538.51 = 45,737.89 : x
  2. Step 2: Convert to fraction form
    81,545.58/112,538.51 = 45,737.89/x
  3. Step 3: Cross multiply
    81,545.58x = 112,538.51 × 45,737.89
  4. Step 4: Simplify right side
    81,545.58x = 5,147,274,542.93
  5. Step 5: Solve for x
    x = 5,147,274,542.93/81,545.58
  6. Step 6: Final answer
    x = 63,121.44

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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.