Home / 67,949.20-93,770.49-39,649.42

Finding the Fourth Proportional to 67,949.20, 93,770.49 and 39,649.42

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Solution

The fourth proportional to 67,949.20, 93,770.49 and 39,649.42 is: 54,716.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,949.20 : 93,770.49 = 39,649.42 : x
  2. Step 2: Convert to fraction form
    67,949.20/93,770.49 = 39,649.42/x
  3. Step 3: Cross multiply
    67,949.20x = 93,770.49 × 39,649.42
  4. Step 4: Simplify right side
    67,949.20x = 3,717,945,541.62
  5. Step 5: Solve for x
    x = 3,717,945,541.62/67,949.20
  6. Step 6: Final answer
    x = 54,716.55

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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.