Home / 75,979.49-114,002.64-40,432.43

Finding the Fourth Proportional to 75,979.49, 114,002.64 and 40,432.43

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Solution

The fourth proportional to 75,979.49, 114,002.64 and 40,432.43 is: 60,666.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,979.49 : 114,002.64 = 40,432.43 : x
  2. Step 2: Convert to fraction form
    75,979.49/114,002.64 = 40,432.43/x
  3. Step 3: Cross multiply
    75,979.49x = 114,002.64 × 40,432.43
  4. Step 4: Simplify right side
    75,979.49x = 4,609,404,046.62
  5. Step 5: Solve for x
    x = 4,609,404,046.62/75,979.49
  6. Step 6: Final answer
    x = 60,666.43

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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.