Home / 71,162.48-98,204.24-39,331.38

Finding the Fourth Proportional to 71,162.48, 98,204.24 and 39,331.38

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Solution

The fourth proportional to 71,162.48, 98,204.24 and 39,331.38 is: 54,277.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,162.48 : 98,204.24 = 39,331.38 : x
  2. Step 2: Convert to fraction form
    71,162.48/98,204.24 = 39,331.38/x
  3. Step 3: Cross multiply
    71,162.48x = 98,204.24 × 39,331.38
  4. Step 4: Simplify right side
    71,162.48x = 3,862,508,281.05
  5. Step 5: Solve for x
    x = 3,862,508,281.05/71,162.48
  6. Step 6: Final answer
    x = 54,277.31

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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.