Home / 71,121.97-98,151.13-40,907.25

Finding the Fourth Proportional to 71,121.97, 98,151.13 and 40,907.25

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Solution

The fourth proportional to 71,121.97, 98,151.13 and 40,907.25 is: 56,453.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,121.97 : 98,151.13 = 40,907.25 : x
  2. Step 2: Convert to fraction form
    71,121.97/98,151.13 = 40,907.25/x
  3. Step 3: Cross multiply
    71,121.97x = 98,151.13 × 40,907.25
  4. Step 4: Simplify right side
    71,121.97x = 4,015,092,812.69
  5. Step 5: Solve for x
    x = 4,015,092,812.69/71,121.97
  6. Step 6: Final answer
    x = 56,453.62

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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.