Home / 72,042.52-108,011.28-34,078.36

Finding the Fourth Proportional to 72,042.52, 108,011.28 and 34,078.36

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Solution

The fourth proportional to 72,042.52, 108,011.28 and 34,078.36 is: 51,092.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,042.52 : 108,011.28 = 34,078.36 : x
  2. Step 2: Convert to fraction form
    72,042.52/108,011.28 = 34,078.36/x
  3. Step 3: Cross multiply
    72,042.52x = 108,011.28 × 34,078.36
  4. Step 4: Simplify right side
    72,042.52x = 3,680,847,283.90
  5. Step 5: Solve for x
    x = 3,680,847,283.90/72,042.52
  6. Step 6: Final answer
    x = 51,092.71

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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.