Home / 51,781.14-71,459.46-29,120.22

Finding the Fourth Proportional to 51,781.14, 71,459.46 and 29,120.22

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Solution

The fourth proportional to 51,781.14, 71,459.46 and 29,120.22 is: 40,186.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,781.14 : 71,459.46 = 29,120.22 : x
  2. Step 2: Convert to fraction form
    51,781.14/71,459.46 = 29,120.22/x
  3. Step 3: Cross multiply
    51,781.14x = 71,459.46 × 29,120.22
  4. Step 4: Simplify right side
    51,781.14x = 2,080,915,196.28
  5. Step 5: Solve for x
    x = 2,080,915,196.28/51,781.14
  6. Step 6: Final answer
    x = 40,186.74

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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.