Home / 71,072.40-98,078.24-38,805.76

Finding the Fourth Proportional to 71,072.40, 98,078.24 and 38,805.76

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Solution

The fourth proportional to 71,072.40, 98,078.24 and 38,805.76 is: 53,551.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,072.40 : 98,078.24 = 38,805.76 : x
  2. Step 2: Convert to fraction form
    71,072.40/98,078.24 = 38,805.76/x
  3. Step 3: Cross multiply
    71,072.40x = 98,078.24 × 38,805.76
  4. Step 4: Simplify right side
    71,072.40x = 3,806,000,642.66
  5. Step 5: Solve for x
    x = 3,806,000,642.66/71,072.40
  6. Step 6: Final answer
    x = 53,551.04

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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.