Home / 81,617.08-112,632.05-45,319.04

Finding the Fourth Proportional to 81,617.08, 112,632.05 and 45,319.04

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Solution

The fourth proportional to 81,617.08, 112,632.05 and 45,319.04 is: 62,540.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,617.08 : 112,632.05 = 45,319.04 : x
  2. Step 2: Convert to fraction form
    81,617.08/112,632.05 = 45,319.04/x
  3. Step 3: Cross multiply
    81,617.08x = 112,632.05 × 45,319.04
  4. Step 4: Simplify right side
    81,617.08x = 5,104,375,589.48
  5. Step 5: Solve for x
    x = 5,104,375,589.48/81,617.08
  6. Step 6: Final answer
    x = 62,540.53

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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.