Home / 50,761.12-75,976.08-45,911.20

Finding the Fourth Proportional to 50,761.12, 75,976.08 and 45,911.20

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Solution

The fourth proportional to 50,761.12, 75,976.08 and 45,911.20 is: 68,717.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    50,761.12 : 75,976.08 = 45,911.20 : x
  2. Step 2: Convert to fraction form
    50,761.12/75,976.08 = 45,911.20/x
  3. Step 3: Cross multiply
    50,761.12x = 75,976.08 × 45,911.20
  4. Step 4: Simplify right side
    50,761.12x = 3,488,153,004.10
  5. Step 5: Solve for x
    x = 3,488,153,004.10/50,761.12
  6. Step 6: Final answer
    x = 68,717.02

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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.