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Finding the Fourth Proportional to 80,310.52, 110,831.40 and 48,473.20

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Solution

The fourth proportional to 80,310.52, 110,831.40 and 48,473.20 is: 66,894.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,310.52 : 110,831.40 = 48,473.20 : x
  2. Step 2: Convert to fraction form
    80,310.52/110,831.40 = 48,473.20/x
  3. Step 3: Cross multiply
    80,310.52x = 110,831.40 × 48,473.20
  4. Step 4: Simplify right side
    80,310.52x = 5,372,352,618.48
  5. Step 5: Solve for x
    x = 5,372,352,618.48/80,310.52
  6. Step 6: Final answer
    x = 66,894.76

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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.