Home / 56,704.68-78,121.44-40,761.54

Finding the Fourth Proportional to 56,704.68, 78,121.44 and 40,761.54

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Solution

The fourth proportional to 56,704.68, 78,121.44 and 40,761.54 is: 56,156.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,704.68 : 78,121.44 = 40,761.54 : x
  2. Step 2: Convert to fraction form
    56,704.68/78,121.44 = 40,761.54/x
  3. Step 3: Cross multiply
    56,704.68x = 78,121.44 × 40,761.54
  4. Step 4: Simplify right side
    56,704.68x = 3,184,350,201.42
  5. Step 5: Solve for x
    x = 3,184,350,201.42/56,704.68
  6. Step 6: Final answer
    x = 56,156.74

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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.