Home / 56,902.88-85,285.20-40,267.78

Finding the Fourth Proportional to 56,902.88, 85,285.20 and 40,267.78

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Solution

The fourth proportional to 56,902.88, 85,285.20 and 40,267.78 is: 60,352.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,902.88 : 85,285.20 = 40,267.78 : x
  2. Step 2: Convert to fraction form
    56,902.88/85,285.20 = 40,267.78/x
  3. Step 3: Cross multiply
    56,902.88x = 85,285.20 × 40,267.78
  4. Step 4: Simplify right side
    56,902.88x = 3,434,245,670.86
  5. Step 5: Solve for x
    x = 3,434,245,670.86/56,902.88
  6. Step 6: Final answer
    x = 60,352.76

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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.