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Finding the Fourth Proportional to 56,649.44, 85,002.72 and 40,115.72

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Solution

The fourth proportional to 56,649.44, 85,002.72 and 40,115.72 is: 60,193.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,649.44 : 85,002.72 = 40,115.72 : x
  2. Step 2: Convert to fraction form
    56,649.44/85,002.72 = 40,115.72/x
  3. Step 3: Cross multiply
    56,649.44x = 85,002.72 × 40,115.72
  4. Step 4: Simplify right side
    56,649.44x = 3,409,945,314.76
  5. Step 5: Solve for x
    x = 3,409,945,314.76/56,649.44
  6. Step 6: Final answer
    x = 60,193.80

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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.