Home / 81,399.60-122,099.40-22,233.15

Finding the Fourth Proportional to 81,399.60, 122,099.40 and 22,233.15

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Solution

The fourth proportional to 81,399.60, 122,099.40 and 22,233.15 is: 33,349.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,399.60 : 122,099.40 = 22,233.15 : x
  2. Step 2: Convert to fraction form
    81,399.60/122,099.40 = 22,233.15/x
  3. Step 3: Cross multiply
    81,399.60x = 122,099.40 × 22,233.15
  4. Step 4: Simplify right side
    81,399.60x = 2,714,654,275.11
  5. Step 5: Solve for x
    x = 2,714,654,275.11/81,399.60
  6. Step 6: Final answer
    x = 33,349.73

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1.5x scale

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.