Home / 83,002.20-124,568.10-38,634.45

Finding the Fourth Proportional to 83,002.20, 124,568.10 and 38,634.45

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Solution

The fourth proportional to 83,002.20, 124,568.10 and 38,634.45 is: 57,981.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,002.20 : 124,568.10 = 38,634.45 : x
  2. Step 2: Convert to fraction form
    83,002.20/124,568.10 = 38,634.45/x
  3. Step 3: Cross multiply
    83,002.20x = 124,568.10 × 38,634.45
  4. Step 4: Simplify right side
    83,002.20x = 4,812,620,031.05
  5. Step 5: Solve for x
    x = 4,812,620,031.05/83,002.20
  6. Step 6: Final answer
    x = 57,981.84

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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.