Home / 83,989.28-126,061.68-42,465.44

Finding the Fourth Proportional to 83,989.28, 126,061.68 and 42,465.44

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Solution

The fourth proportional to 83,989.28, 126,061.68 and 42,465.44 is: 63,737.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,989.28 : 126,061.68 = 42,465.44 : x
  2. Step 2: Convert to fraction form
    83,989.28/126,061.68 = 42,465.44/x
  3. Step 3: Cross multiply
    83,989.28x = 126,061.68 × 42,465.44
  4. Step 4: Simplify right side
    83,989.28x = 5,353,264,708.34
  5. Step 5: Solve for x
    x = 5,353,264,708.34/83,989.28
  6. Step 6: Final answer
    x = 63,737.48

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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.