Home / 75,508.18-113,247.15-71,761.30

Finding the Fourth Proportional to 75,508.18, 113,247.15 and 71,761.30

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Solution

The fourth proportional to 75,508.18, 113,247.15 and 71,761.30 is: 107,627.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,508.18 : 113,247.15 = 71,761.30 : x
  2. Step 2: Convert to fraction form
    75,508.18/113,247.15 = 71,761.30/x
  3. Step 3: Cross multiply
    75,508.18x = 113,247.15 × 71,761.30
  4. Step 4: Simplify right side
    75,508.18x = 8,126,762,705.30
  5. Step 5: Solve for x
    x = 8,126,762,705.30/75,508.18
  6. Step 6: Final answer
    x = 107,627.58

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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.