Home / 82,484.40-123,640.20-32,545.20

Finding the Fourth Proportional to 82,484.40, 123,640.20 and 32,545.20

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Solution

The fourth proportional to 82,484.40, 123,640.20 and 32,545.20 is: 48,783.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,484.40 : 123,640.20 = 32,545.20 : x
  2. Step 2: Convert to fraction form
    82,484.40/123,640.20 = 32,545.20/x
  3. Step 3: Cross multiply
    82,484.40x = 123,640.20 × 32,545.20
  4. Step 4: Simplify right side
    82,484.40x = 4,023,895,037.04
  5. Step 5: Solve for x
    x = 4,023,895,037.04/82,484.40
  6. Step 6: Final answer
    x = 48,783.71

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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.