Home / 89,691.25-123,773.93-51,987.37

Finding the Fourth Proportional to 89,691.25, 123,773.93 and 51,987.37

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Solution

The fourth proportional to 89,691.25, 123,773.93 and 51,987.37 is: 71,742.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,691.25 : 123,773.93 = 51,987.37 : x
  2. Step 2: Convert to fraction form
    89,691.25/123,773.93 = 51,987.37/x
  3. Step 3: Cross multiply
    89,691.25x = 123,773.93 × 51,987.37
  4. Step 4: Simplify right side
    89,691.25x = 6,434,681,095.26
  5. Step 5: Solve for x
    x = 6,434,681,095.26/89,691.25
  6. Step 6: Final answer
    x = 71,742.57

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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.