Home / 71,122.04-98,148.10-39,290.95

Finding the Fourth Proportional to 71,122.04, 98,148.10 and 39,290.95

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Solution

The fourth proportional to 71,122.04, 98,148.10 and 39,290.95 is: 54,221.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,122.04 : 98,148.10 = 39,290.95 : x
  2. Step 2: Convert to fraction form
    71,122.04/98,148.10 = 39,290.95/x
  3. Step 3: Cross multiply
    71,122.04x = 98,148.10 × 39,290.95
  4. Step 4: Simplify right side
    71,122.04x = 3,856,332,089.70
  5. Step 5: Solve for x
    x = 3,856,332,089.70/71,122.04
  6. Step 6: Final answer
    x = 54,221.34

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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.