Home / 75,046.18-112,513.38-45,456.88

Finding the Fourth Proportional to 75,046.18, 112,513.38 and 45,456.88

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Solution

The fourth proportional to 75,046.18, 112,513.38 and 45,456.88 is: 68,151.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,046.18 : 112,513.38 = 45,456.88 : x
  2. Step 2: Convert to fraction form
    75,046.18/112,513.38 = 45,456.88/x
  3. Step 3: Cross multiply
    75,046.18x = 112,513.38 × 45,456.88
  4. Step 4: Simplify right side
    75,046.18x = 5,114,507,213.05
  5. Step 5: Solve for x
    x = 5,114,507,213.05/75,046.18
  6. Step 6: Final answer
    x = 68,151.47

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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.