Home / 51,375.20-77,013.60-21,752.30

Finding the Fourth Proportional to 51,375.20, 77,013.60 and 21,752.30

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Solution

The fourth proportional to 51,375.20, 77,013.60 and 21,752.30 is: 32,607.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,375.20 : 77,013.60 = 21,752.30 : x
  2. Step 2: Convert to fraction form
    51,375.20/77,013.60 = 21,752.30/x
  3. Step 3: Cross multiply
    51,375.20x = 77,013.60 × 21,752.30
  4. Step 4: Simplify right side
    51,375.20x = 1,675,222,931.28
  5. Step 5: Solve for x
    x = 1,675,222,931.28/51,375.20
  6. Step 6: Final answer
    x = 32,607.62

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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.