Home / 74,330.40-111,625.20-71,997.60

Finding the Fourth Proportional to 74,330.40, 111,625.20 and 71,997.60

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Solution

The fourth proportional to 74,330.40, 111,625.20 and 71,997.60 is: 108,121.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,330.40 : 111,625.20 = 71,997.60 : x
  2. Step 2: Convert to fraction form
    74,330.40/111,625.20 = 71,997.60/x
  3. Step 3: Cross multiply
    74,330.40x = 111,625.20 × 71,997.60
  4. Step 4: Simplify right side
    74,330.40x = 8,036,746,499.52
  5. Step 5: Solve for x
    x = 8,036,746,499.52/74,330.40
  6. Step 6: Final answer
    x = 108,121.93

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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.