Home / 74,272.20-111,311.10-29,862.60

Finding the Fourth Proportional to 74,272.20, 111,311.10 and 29,862.60

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Solution

The fourth proportional to 74,272.20, 111,311.10 and 29,862.60 is: 44,754.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,272.20 : 111,311.10 = 29,862.60 : x
  2. Step 2: Convert to fraction form
    74,272.20/111,311.10 = 29,862.60/x
  3. Step 3: Cross multiply
    74,272.20x = 111,311.10 × 29,862.60
  4. Step 4: Simplify right side
    74,272.20x = 3,324,038,854.86
  5. Step 5: Solve for x
    x = 3,324,038,854.86/74,272.20
  6. Step 6: Final answer
    x = 44,754.82

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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.