Home / 52,705.92-78,932.18-30,148.23

Finding the Fourth Proportional to 52,705.92, 78,932.18 and 30,148.23

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Solution

The fourth proportional to 52,705.92, 78,932.18 and 30,148.23 is: 45,149.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,705.92 : 78,932.18 = 30,148.23 : x
  2. Step 2: Convert to fraction form
    52,705.92/78,932.18 = 30,148.23/x
  3. Step 3: Cross multiply
    52,705.92x = 78,932.18 × 30,148.23
  4. Step 4: Simplify right side
    52,705.92x = 2,379,665,517.04
  5. Step 5: Solve for x
    x = 2,379,665,517.04/52,705.92
  6. Step 6: Final answer
    x = 45,149.87

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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.