Home / 76,531.32-114,805.58-20,373.62

Finding the Fourth Proportional to 76,531.32, 114,805.58 and 20,373.62

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Solution

The fourth proportional to 76,531.32, 114,805.58 and 20,373.62 is: 30,562.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,531.32 : 114,805.58 = 20,373.62 : x
  2. Step 2: Convert to fraction form
    76,531.32/114,805.58 = 20,373.62/x
  3. Step 3: Cross multiply
    76,531.32x = 114,805.58 × 20,373.62
  4. Step 4: Simplify right side
    76,531.32x = 2,339,004,584.90
  5. Step 5: Solve for x
    x = 2,339,004,584.90/76,531.32
  6. Step 6: Final answer
    x = 30,562.71

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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.