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Finding the Fourth Proportional to 72,545.35, 108,752.37 and 25,787.29

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Solution

The fourth proportional to 72,545.35, 108,752.37 and 25,787.29 is: 38,657.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,545.35 : 108,752.37 = 25,787.29 : x
  2. Step 2: Convert to fraction form
    72,545.35/108,752.37 = 25,787.29/x
  3. Step 3: Cross multiply
    72,545.35x = 108,752.37 × 25,787.29
  4. Step 4: Simplify right side
    72,545.35x = 2,804,428,903.38
  5. Step 5: Solve for x
    x = 2,804,428,903.38/72,545.35
  6. Step 6: Final answer
    x = 38,657.60

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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.