Home / 71,546.38-98,729.06-39,712.77

Finding the Fourth Proportional to 71,546.38, 98,729.06 and 39,712.77

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Solution

The fourth proportional to 71,546.38, 98,729.06 and 39,712.77 is: 54,800.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,546.38 : 98,729.06 = 39,712.77 : x
  2. Step 2: Convert to fraction form
    71,546.38/98,729.06 = 39,712.77/x
  3. Step 3: Cross multiply
    71,546.38x = 98,729.06 × 39,712.77
  4. Step 4: Simplify right side
    71,546.38x = 3,920,804,253.53
  5. Step 5: Solve for x
    x = 3,920,804,253.53/71,546.38
  6. Step 6: Final answer
    x = 54,800.88

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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.