Home / 71,208.50-98,266.11-39,377.66

Finding the Fourth Proportional to 71,208.50, 98,266.11 and 39,377.66

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Solution

The fourth proportional to 71,208.50, 98,266.11 and 39,377.66 is: 54,340.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,208.50 : 98,266.11 = 39,377.66 : x
  2. Step 2: Convert to fraction form
    71,208.50/98,266.11 = 39,377.66/x
  3. Step 3: Cross multiply
    71,208.50x = 98,266.11 × 39,377.66
  4. Step 4: Simplify right side
    71,208.50x = 3,869,489,469.10
  5. Step 5: Solve for x
    x = 3,869,489,469.10/71,208.50
  6. Step 6: Final answer
    x = 54,340.27

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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.