Home / 71,716.20-98,966.94-39,884.41

Finding the Fourth Proportional to 71,716.20, 98,966.94 and 39,884.41

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Solution

The fourth proportional to 71,716.20, 98,966.94 and 39,884.41 is: 55,039.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,716.20 : 98,966.94 = 39,884.41 : x
  2. Step 2: Convert to fraction form
    71,716.20/98,966.94 = 39,884.41/x
  3. Step 3: Cross multiply
    71,716.20x = 98,966.94 × 39,884.41
  4. Step 4: Simplify right side
    71,716.20x = 3,947,238,011.41
  5. Step 5: Solve for x
    x = 3,947,238,011.41/71,716.20
  6. Step 6: Final answer
    x = 55,039.70

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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.