Home / 72,878.46-109,244.61-25,456.74

Finding the Fourth Proportional to 72,878.46, 109,244.61 and 25,456.74

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Solution

The fourth proportional to 72,878.46, 109,244.61 and 25,456.74 is: 38,159.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,878.46 : 109,244.61 = 25,456.74 : x
  2. Step 2: Convert to fraction form
    72,878.46/109,244.61 = 25,456.74/x
  3. Step 3: Cross multiply
    72,878.46x = 109,244.61 × 25,456.74
  4. Step 4: Simplify right side
    72,878.46x = 2,781,011,633.17
  5. Step 5: Solve for x
    x = 2,781,011,633.17/72,878.46
  6. Step 6: Final answer
    x = 38,159.58

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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.