Home / 83,964.10-126,043.35-50,721.70

Finding the Fourth Proportional to 83,964.10, 126,043.35 and 50,721.70

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Solution

The fourth proportional to 83,964.10, 126,043.35 and 50,721.70 is: 76,141.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,964.10 : 126,043.35 = 50,721.70 : x
  2. Step 2: Convert to fraction form
    83,964.10/126,043.35 = 50,721.70/x
  3. Step 3: Cross multiply
    83,964.10x = 126,043.35 × 50,721.70
  4. Step 4: Simplify right side
    83,964.10x = 6,393,132,985.70
  5. Step 5: Solve for x
    x = 6,393,132,985.70/83,964.10
  6. Step 6: Final answer
    x = 76,141.27

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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.