Home / 71,167.75-98,211.40-38,902.57

Finding the Fourth Proportional to 71,167.75, 98,211.40 and 38,902.57

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Solution

The fourth proportional to 71,167.75, 98,211.40 and 38,902.57 is: 53,685.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,167.75 : 98,211.40 = 38,902.57 : x
  2. Step 2: Convert to fraction form
    71,167.75/98,211.40 = 38,902.57/x
  3. Step 3: Cross multiply
    71,167.75x = 98,211.40 × 38,902.57
  4. Step 4: Simplify right side
    71,167.75x = 3,820,675,863.30
  5. Step 5: Solve for x
    x = 3,820,675,863.30/71,167.75
  6. Step 6: Final answer
    x = 53,685.49

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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.