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Finding the Fourth Proportional to 56,865.62, 85,229.24 and 40,230.45

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Solution

The fourth proportional to 56,865.62, 85,229.24 and 40,230.45 is: 60,296.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,865.62 : 85,229.24 = 40,230.45 : x
  2. Step 2: Convert to fraction form
    56,865.62/85,229.24 = 40,230.45/x
  3. Step 3: Cross multiply
    56,865.62x = 85,229.24 × 40,230.45
  4. Step 4: Simplify right side
    56,865.62x = 3,428,810,477.21
  5. Step 5: Solve for x
    x = 3,428,810,477.21/56,865.62
  6. Step 6: Final answer
    x = 60,296.72

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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.