Home / 71,589.23-98,790.42-39,760.17

Finding the Fourth Proportional to 71,589.23, 98,790.42 and 39,760.17

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Solution

The fourth proportional to 71,589.23, 98,790.42 and 39,760.17 is: 54,867.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,589.23 : 98,790.42 = 39,760.17 : x
  2. Step 2: Convert to fraction form
    71,589.23/98,790.42 = 39,760.17/x
  3. Step 3: Cross multiply
    71,589.23x = 98,790.42 × 39,760.17
  4. Step 4: Simplify right side
    71,589.23x = 3,927,923,893.57
  5. Step 5: Solve for x
    x = 3,927,923,893.57/71,589.23
  6. Step 6: Final answer
    x = 54,867.53

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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.