Home / 71,177.52-98,220.16-39,342.12

Finding the Fourth Proportional to 71,177.52, 98,220.16 and 39,342.12

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Solution

The fourth proportional to 71,177.52, 98,220.16 and 39,342.12 is: 54,289.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,177.52 : 98,220.16 = 39,342.12 : x
  2. Step 2: Convert to fraction form
    71,177.52/98,220.16 = 39,342.12/x
  3. Step 3: Cross multiply
    71,177.52x = 98,220.16 × 39,342.12
  4. Step 4: Simplify right side
    71,177.52x = 3,864,189,321.14
  5. Step 5: Solve for x
    x = 3,864,189,321.14/71,177.52
  6. Step 6: Final answer
    x = 54,289.46

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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.