Home / 75,108.46-103,654.68-43,279.42

Finding the Fourth Proportional to 75,108.46, 103,654.68 and 43,279.42

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Solution

The fourth proportional to 75,108.46, 103,654.68 and 43,279.42 is: 59,728.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,108.46 : 103,654.68 = 43,279.42 : x
  2. Step 2: Convert to fraction form
    75,108.46/103,654.68 = 43,279.42/x
  3. Step 3: Cross multiply
    75,108.46x = 103,654.68 × 43,279.42
  4. Step 4: Simplify right side
    75,108.46x = 4,486,114,430.69
  5. Step 5: Solve for x
    x = 4,486,114,430.69/75,108.46
  6. Step 6: Final answer
    x = 59,728.48

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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.