Home / 51,781.67-71,458.03-29,120.66

Finding the Fourth Proportional to 51,781.67, 71,458.03 and 29,120.66

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Solution

The fourth proportional to 51,781.67, 71,458.03 and 29,120.66 is: 40,186.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,781.67 : 71,458.03 = 29,120.66 : x
  2. Step 2: Convert to fraction form
    51,781.67/71,458.03 = 29,120.66/x
  3. Step 3: Cross multiply
    51,781.67x = 71,458.03 × 29,120.66
  4. Step 4: Simplify right side
    51,781.67x = 2,080,904,995.90
  5. Step 5: Solve for x
    x = 2,080,904,995.90/51,781.67
  6. Step 6: Final answer
    x = 40,186.13

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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.