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Finding the Fourth Proportional to 81,337.60, 121,833.60 and 50,233.60

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Solution

The fourth proportional to 81,337.60, 121,833.60 and 50,233.60 is: 75,243.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,337.60 : 121,833.60 = 50,233.60 : x
  2. Step 2: Convert to fraction form
    81,337.60/121,833.60 = 50,233.60/x
  3. Step 3: Cross multiply
    81,337.60x = 121,833.60 × 50,233.60
  4. Step 4: Simplify right side
    81,337.60x = 6,120,140,328.96
  5. Step 5: Solve for x
    x = 6,120,140,328.96/81,337.60
  6. Step 6: Final answer
    x = 75,243.68

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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.