Home / 98,279.55-147,419.33-31,721.85

Finding the Fourth Proportional to 98,279.55, 147,419.33 and 31,721.85

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Solution

The fourth proportional to 98,279.55, 147,419.33 and 31,721.85 is: 47,582.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,279.55 : 147,419.33 = 31,721.85 : x
  2. Step 2: Convert to fraction form
    98,279.55/147,419.33 = 31,721.85/x
  3. Step 3: Cross multiply
    98,279.55x = 147,419.33 × 31,721.85
  4. Step 4: Simplify right side
    98,279.55x = 4,676,413,714.75
  5. Step 5: Solve for x
    x = 4,676,413,714.75/98,279.55
  6. Step 6: Final answer
    x = 47,582.78

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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.