Home / 91,262.32-125,649.24-79,481.20

Finding the Fourth Proportional to 91,262.32, 125,649.24 and 79,481.20

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Solution

The fourth proportional to 91,262.32, 125,649.24 and 79,481.20 is: 109,429.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,262.32 : 125,649.24 = 79,481.20 : x
  2. Step 2: Convert to fraction form
    91,262.32/125,649.24 = 79,481.20/x
  3. Step 3: Cross multiply
    91,262.32x = 125,649.24 × 79,481.20
  4. Step 4: Simplify right side
    91,262.32x = 9,986,752,374.29
  5. Step 5: Solve for x
    x = 9,986,752,374.29/91,262.32
  6. Step 6: Final answer
    x = 109,429.09

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.