Home / 82,400.67-123,612.84-25,479.00

Finding the Fourth Proportional to 82,400.67, 123,612.84 and 25,479.00

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Solution

The fourth proportional to 82,400.67, 123,612.84 and 25,479.00 is: 38,222.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,400.67 : 123,612.84 = 25,479.00 : x
  2. Step 2: Convert to fraction form
    82,400.67/123,612.84 = 25,479.00/x
  3. Step 3: Cross multiply
    82,400.67x = 123,612.84 × 25,479.00
  4. Step 4: Simplify right side
    82,400.67x = 3,149,532,013.91
  5. Step 5: Solve for x
    x = 3,149,532,013.91/82,400.67
  6. Step 6: Final answer
    x = 38,222.17

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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.