Home / 81,262.20-111,823.02-71,853.24

Finding the Fourth Proportional to 81,262.20, 111,823.02 and 71,853.24

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Solution

The fourth proportional to 81,262.20, 111,823.02 and 71,853.24 is: 98,875.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,262.20 : 111,823.02 = 71,853.24 : x
  2. Step 2: Convert to fraction form
    81,262.20/111,823.02 = 71,853.24/x
  3. Step 3: Cross multiply
    81,262.20x = 111,823.02 × 71,853.24
  4. Step 4: Simplify right side
    81,262.20x = 8,034,846,293.58
  5. Step 5: Solve for x
    x = 8,034,846,293.58/81,262.20
  6. Step 6: Final answer
    x = 98,875.57

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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.