Home / 71,019.68-98,006.94-39,188.30

Finding the Fourth Proportional to 71,019.68, 98,006.94 and 39,188.30

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Solution

The fourth proportional to 71,019.68, 98,006.94 and 39,188.30 is: 54,079.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,019.68 : 98,006.94 = 39,188.30 : x
  2. Step 2: Convert to fraction form
    71,019.68/98,006.94 = 39,188.30/x
  3. Step 3: Cross multiply
    71,019.68x = 98,006.94 × 39,188.30
  4. Step 4: Simplify right side
    71,019.68x = 3,840,725,366.80
  5. Step 5: Solve for x
    x = 3,840,725,366.80/71,019.68
  6. Step 6: Final answer
    x = 54,079.73

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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.