Home / 82,354.20-123,728.13-52,829.70

Finding the Fourth Proportional to 82,354.20, 123,728.13 and 52,829.70

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Solution

The fourth proportional to 82,354.20, 123,728.13 and 52,829.70 is: 79,370.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,354.20 : 123,728.13 = 52,829.70 : x
  2. Step 2: Convert to fraction form
    82,354.20/123,728.13 = 52,829.70/x
  3. Step 3: Cross multiply
    82,354.20x = 123,728.13 × 52,829.70
  4. Step 4: Simplify right side
    82,354.20x = 6,536,519,989.46
  5. Step 5: Solve for x
    x = 6,536,519,989.46/82,354.20
  6. Step 6: Final answer
    x = 79,370.82

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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.