Home / 51,372.08-77,069.94-21,791.06

Finding the Fourth Proportional to 51,372.08, 77,069.94 and 21,791.06

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Solution

The fourth proportional to 51,372.08, 77,069.94 and 21,791.06 is: 32,691.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,372.08 : 77,069.94 = 21,791.06 : x
  2. Step 2: Convert to fraction form
    51,372.08/77,069.94 = 21,791.06/x
  3. Step 3: Cross multiply
    51,372.08x = 77,069.94 × 21,791.06
  4. Step 4: Simplify right side
    51,372.08x = 1,679,435,686.74
  5. Step 5: Solve for x
    x = 1,679,435,686.74/51,372.08
  6. Step 6: Final answer
    x = 32,691.60

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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.