Home / 80,200.26-110,726.55-51,531.48

Finding the Fourth Proportional to 80,200.26, 110,726.55 and 51,531.48

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Solution

The fourth proportional to 80,200.26, 110,726.55 and 51,531.48 is: 71,145.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,200.26 : 110,726.55 = 51,531.48 : x
  2. Step 2: Convert to fraction form
    80,200.26/110,726.55 = 51,531.48/x
  3. Step 3: Cross multiply
    80,200.26x = 110,726.55 × 51,531.48
  4. Step 4: Simplify right side
    80,200.26x = 5,705,902,996.79
  5. Step 5: Solve for x
    x = 5,705,902,996.79/80,200.26
  6. Step 6: Final answer
    x = 71,145.69

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1.5x scale

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.