Home / 71,715.24-98,966.34-39,882.60

Finding the Fourth Proportional to 71,715.24, 98,966.34 and 39,882.60

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Solution

The fourth proportional to 71,715.24, 98,966.34 and 39,882.60 is: 55,037.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,715.24 : 98,966.34 = 39,882.60 : x
  2. Step 2: Convert to fraction form
    71,715.24/98,966.34 = 39,882.60/x
  3. Step 3: Cross multiply
    71,715.24x = 98,966.34 × 39,882.60
  4. Step 4: Simplify right side
    71,715.24x = 3,947,034,951.68
  5. Step 5: Solve for x
    x = 3,947,034,951.68/71,715.24
  6. Step 6: Final answer
    x = 55,037.60

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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.