Home / 76,781.52-115,084.92-46,729.46

Finding the Fourth Proportional to 76,781.52, 115,084.92 and 46,729.46

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Solution

The fourth proportional to 76,781.52, 115,084.92 and 46,729.46 is: 70,041.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,781.52 : 115,084.92 = 46,729.46 : x
  2. Step 2: Convert to fraction form
    76,781.52/115,084.92 = 46,729.46/x
  3. Step 3: Cross multiply
    76,781.52x = 115,084.92 × 46,729.46
  4. Step 4: Simplify right side
    76,781.52x = 5,377,856,165.74
  5. Step 5: Solve for x
    x = 5,377,856,165.74/76,781.52
  6. Step 6: Final answer
    x = 70,041.02

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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.