Home / 82,398.32-123,609.32-25,476.66

Finding the Fourth Proportional to 82,398.32, 123,609.32 and 25,476.66

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Solution

The fourth proportional to 82,398.32, 123,609.32 and 25,476.66 is: 38,218.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,398.32 : 123,609.32 = 25,476.66 : x
  2. Step 2: Convert to fraction form
    82,398.32/123,609.32 = 25,476.66/x
  3. Step 3: Cross multiply
    82,398.32x = 123,609.32 × 25,476.66
  4. Step 4: Simplify right side
    82,398.32x = 3,149,153,002.49
  5. Step 5: Solve for x
    x = 3,149,153,002.49/82,398.32
  6. Step 6: Final answer
    x = 38,218.66

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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.