Home / 81,301.06-112,200.96-45,489.10

Finding the Fourth Proportional to 81,301.06, 112,200.96 and 45,489.10

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Solution

The fourth proportional to 81,301.06, 112,200.96 and 45,489.10 is: 62,778.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,301.06 : 112,200.96 = 45,489.10 : x
  2. Step 2: Convert to fraction form
    81,301.06/112,200.96 = 45,489.10/x
  3. Step 3: Cross multiply
    81,301.06x = 112,200.96 × 45,489.10
  4. Step 4: Simplify right side
    81,301.06x = 5,103,920,689.54
  5. Step 5: Solve for x
    x = 5,103,920,689.54/81,301.06
  6. Step 6: Final answer
    x = 62,778.03

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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.