Home / 71,137.91-98,167.19-39,306.12

Finding the Fourth Proportional to 71,137.91, 98,167.19 and 39,306.12

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Solution

The fourth proportional to 71,137.91, 98,167.19 and 39,306.12 is: 54,240.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,137.91 : 98,167.19 = 39,306.12 : x
  2. Step 2: Convert to fraction form
    71,137.91/98,167.19 = 39,306.12/x
  3. Step 3: Cross multiply
    71,137.91x = 98,167.19 × 39,306.12
  4. Step 4: Simplify right side
    71,137.91x = 3,858,571,153.67
  5. Step 5: Solve for x
    x = 3,858,571,153.67/71,137.91
  6. Step 6: Final answer
    x = 54,240.72

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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.