Home / 83,170.10-124,820.68-38,774

Finding the Fourth Proportional to 83,170.10, 124,820.68 and 38,774

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Solution

The fourth proportional to 83,170.10, 124,820.68 and 38,774 is: 58,191.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,170.10 : 124,820.68 = 38,774 : x
  2. Step 2: Convert to fraction form
    83,170.10/124,820.68 = 38,774/x
  3. Step 3: Cross multiply
    83,170.10x = 124,820.68 × 38,774
  4. Step 4: Simplify right side
    83,170.10x = 4,839,797,046.32
  5. Step 5: Solve for x
    x = 4,839,797,046.32/83,170.10
  6. Step 6: Final answer
    x = 58,191.55

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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.