Home / 76,948.52-115,474.62-30,195.88

Finding the Fourth Proportional to 76,948.52, 115,474.62 and 30,195.88

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Solution

The fourth proportional to 76,948.52, 115,474.62 and 30,195.88 is: 45,314.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,948.52 : 115,474.62 = 30,195.88 : x
  2. Step 2: Convert to fraction form
    76,948.52/115,474.62 = 30,195.88/x
  3. Step 3: Cross multiply
    76,948.52x = 115,474.62 × 30,195.88
  4. Step 4: Simplify right side
    76,948.52x = 3,486,857,768.57
  5. Step 5: Solve for x
    x = 3,486,857,768.57/76,948.52
  6. Step 6: Final answer
    x = 45,314.16

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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.