Home / 40,079.38-60,111.11-11,619.68

Finding the Fourth Proportional to 40,079.38, 60,111.11 and 11,619.68

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Solution

The fourth proportional to 40,079.38, 60,111.11 and 11,619.68 is: 17,427.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,079.38 : 60,111.11 = 11,619.68 : x
  2. Step 2: Convert to fraction form
    40,079.38/60,111.11 = 11,619.68/x
  3. Step 3: Cross multiply
    40,079.38x = 60,111.11 × 11,619.68
  4. Step 4: Simplify right side
    40,079.38x = 698,471,760.20
  5. Step 5: Solve for x
    x = 698,471,760.20/40,079.38
  6. Step 6: Final answer
    x = 17,427.21

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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.