Home / 71,125.75-98,149.98-39,288.52

Finding the Fourth Proportional to 71,125.75, 98,149.98 and 39,288.52

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Solution

The fourth proportional to 71,125.75, 98,149.98 and 39,288.52 is: 54,216.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,125.75 : 98,149.98 = 39,288.52 : x
  2. Step 2: Convert to fraction form
    71,125.75/98,149.98 = 39,288.52/x
  3. Step 3: Cross multiply
    71,125.75x = 98,149.98 × 39,288.52
  4. Step 4: Simplify right side
    71,125.75x = 3,856,167,452.23
  5. Step 5: Solve for x
    x = 3,856,167,452.23/71,125.75
  6. Step 6: Final answer
    x = 54,216.19

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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.