Home / 82,781.26-114,238.12-45,055.78

Finding the Fourth Proportional to 82,781.26, 114,238.12 and 45,055.78

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Solution

The fourth proportional to 82,781.26, 114,238.12 and 45,055.78 is: 62,176.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,781.26 : 114,238.12 = 45,055.78 : x
  2. Step 2: Convert to fraction form
    82,781.26/114,238.12 = 45,055.78/x
  3. Step 3: Cross multiply
    82,781.26x = 114,238.12 × 45,055.78
  4. Step 4: Simplify right side
    82,781.26x = 5,147,087,602.33
  5. Step 5: Solve for x
    x = 5,147,087,602.33/82,781.26
  6. Step 6: Final answer
    x = 62,176.97

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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.