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Finding the Fourth Proportional to 70,668.75, 97,517.10 and 40,447.17

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Solution

The fourth proportional to 70,668.75, 97,517.10 and 40,447.17 is: 55,813.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,668.75 : 97,517.10 = 40,447.17 : x
  2. Step 2: Convert to fraction form
    70,668.75/97,517.10 = 40,447.17/x
  3. Step 3: Cross multiply
    70,668.75x = 97,517.10 × 40,447.17
  4. Step 4: Simplify right side
    70,668.75x = 3,944,290,721.61
  5. Step 5: Solve for x
    x = 3,944,290,721.61/70,668.75
  6. Step 6: Final answer
    x = 55,813.79

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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.