Home / 76,712.34-115,084.20-32,339.10

Finding the Fourth Proportional to 76,712.34, 115,084.20 and 32,339.10

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Solution

The fourth proportional to 76,712.34, 115,084.20 and 32,339.10 is: 48,515.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,712.34 : 115,084.20 = 32,339.10 : x
  2. Step 2: Convert to fraction form
    76,712.34/115,084.20 = 32,339.10/x
  3. Step 3: Cross multiply
    76,712.34x = 115,084.20 × 32,339.10
  4. Step 4: Simplify right side
    76,712.34x = 3,721,719,452.22
  5. Step 5: Solve for x
    x = 3,721,719,452.22/76,712.34
  6. Step 6: Final answer
    x = 48,515.26

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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.