Home / 51,818.31-77,757.30-21,830.22

Finding the Fourth Proportional to 51,818.31, 77,757.30 and 21,830.22

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Solution

The fourth proportional to 51,818.31, 77,757.30 and 21,830.22 is: 32,757.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,818.31 : 77,757.30 = 21,830.22 : x
  2. Step 2: Convert to fraction form
    51,818.31/77,757.30 = 21,830.22/x
  3. Step 3: Cross multiply
    51,818.31x = 77,757.30 × 21,830.22
  4. Step 4: Simplify right side
    51,818.31x = 1,697,458,965.61
  5. Step 5: Solve for x
    x = 1,697,458,965.61/51,818.31
  6. Step 6: Final answer
    x = 32,757.90

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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.