Home / 82,240.20-123,360.30-52,715.70

Finding the Fourth Proportional to 82,240.20, 123,360.30 and 52,715.70

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Solution

The fourth proportional to 82,240.20, 123,360.30 and 52,715.70 is: 79,073.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,240.20 : 123,360.30 = 52,715.70 : x
  2. Step 2: Convert to fraction form
    82,240.20/123,360.30 = 52,715.70/x
  3. Step 3: Cross multiply
    82,240.20x = 123,360.30 × 52,715.70
  4. Step 4: Simplify right side
    82,240.20x = 6,503,024,566.71
  5. Step 5: Solve for x
    x = 6,503,024,566.71/82,240.20
  6. Step 6: Final answer
    x = 79,073.55

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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.