Home / 72,315.52-108,432.67-49,545.07

Finding the Fourth Proportional to 72,315.52, 108,432.67 and 49,545.07

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Solution

The fourth proportional to 72,315.52, 108,432.67 and 49,545.07 is: 74,289.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,315.52 : 108,432.67 = 49,545.07 : x
  2. Step 2: Convert to fraction form
    72,315.52/108,432.67 = 49,545.07/x
  3. Step 3: Cross multiply
    72,315.52x = 108,432.67 × 49,545.07
  4. Step 4: Simplify right side
    72,315.52x = 5,372,304,225.44
  5. Step 5: Solve for x
    x = 5,372,304,225.44/72,315.52
  6. Step 6: Final answer
    x = 74,289.78

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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.