Home / 83,440.62-115,147.17-45,714.78

Finding the Fourth Proportional to 83,440.62, 115,147.17 and 45,714.78

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Solution

The fourth proportional to 83,440.62, 115,147.17 and 45,714.78 is: 63,085.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,440.62 : 115,147.17 = 45,714.78 : x
  2. Step 2: Convert to fraction form
    83,440.62/115,147.17 = 45,714.78/x
  3. Step 3: Cross multiply
    83,440.62x = 115,147.17 × 45,714.78
  4. Step 4: Simplify right side
    83,440.62x = 5,263,927,544.17
  5. Step 5: Solve for x
    x = 5,263,927,544.17/83,440.62
  6. Step 6: Final answer
    x = 63,085.91

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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.