Home / 51,377.20-77,016.60-21,754.30

Finding the Fourth Proportional to 51,377.20, 77,016.60 and 21,754.30

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Solution

The fourth proportional to 51,377.20, 77,016.60 and 21,754.30 is: 32,610.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,377.20 : 77,016.60 = 21,754.30 : x
  2. Step 2: Convert to fraction form
    51,377.20/77,016.60 = 21,754.30/x
  3. Step 3: Cross multiply
    51,377.20x = 77,016.60 × 21,754.30
  4. Step 4: Simplify right side
    51,377.20x = 1,675,442,221.38
  5. Step 5: Solve for x
    x = 1,675,442,221.38/51,377.20
  6. Step 6: Final answer
    x = 32,610.62

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.