Home / 81,350.38-112,262.66-45,540.68

Finding the Fourth Proportional to 81,350.38, 112,262.66 and 45,540.68

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Solution

The fourth proportional to 81,350.38, 112,262.66 and 45,540.68 is: 62,845.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,350.38 : 112,262.66 = 45,540.68 : x
  2. Step 2: Convert to fraction form
    81,350.38/112,262.66 = 45,540.68/x
  3. Step 3: Cross multiply
    81,350.38x = 112,262.66 × 45,540.68
  4. Step 4: Simplify right side
    81,350.38x = 5,112,518,354.91
  5. Step 5: Solve for x
    x = 5,112,518,354.91/81,350.38
  6. Step 6: Final answer
    x = 62,845.66

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1.5x scale

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.