Home / 84,272.28-126,359.50-39,898.66

Finding the Fourth Proportional to 84,272.28, 126,359.50 and 39,898.66

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Solution

The fourth proportional to 84,272.28, 126,359.50 and 39,898.66 is: 59,824.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,272.28 : 126,359.50 = 39,898.66 : x
  2. Step 2: Convert to fraction form
    84,272.28/126,359.50 = 39,898.66/x
  3. Step 3: Cross multiply
    84,272.28x = 126,359.50 × 39,898.66
  4. Step 4: Simplify right side
    84,272.28x = 5,041,574,728.27
  5. Step 5: Solve for x
    x = 5,041,574,728.27/84,272.28
  6. Step 6: Final answer
    x = 59,824.83

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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.