Home / 82,781.28-124,176.65-23,612.40

Finding the Fourth Proportional to 82,781.28, 124,176.65 and 23,612.40

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Solution

The fourth proportional to 82,781.28, 124,176.65 and 23,612.40 is: 35,419.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,781.28 : 124,176.65 = 23,612.40 : x
  2. Step 2: Convert to fraction form
    82,781.28/124,176.65 = 23,612.40/x
  3. Step 3: Cross multiply
    82,781.28x = 124,176.65 × 23,612.40
  4. Step 4: Simplify right side
    82,781.28x = 2,932,108,612.40
  5. Step 5: Solve for x
    x = 2,932,108,612.40/82,781.28
  6. Step 6: Final answer
    x = 35,419.95

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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.