Home / 83,590.26-115,354.54-47,781.03

Finding the Fourth Proportional to 83,590.26, 115,354.54 and 47,781.03

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Solution

The fourth proportional to 83,590.26, 115,354.54 and 47,781.03 is: 65,937.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,590.26 : 115,354.54 = 47,781.03 : x
  2. Step 2: Convert to fraction form
    83,590.26/115,354.54 = 47,781.03/x
  3. Step 3: Cross multiply
    83,590.26x = 115,354.54 × 47,781.03
  4. Step 4: Simplify right side
    83,590.26x = 5,511,758,497.47
  5. Step 5: Solve for x
    x = 5,511,758,497.47/83,590.26
  6. Step 6: Final answer
    x = 65,937.81

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.