Home / 77,229.56-115,845.52-30,482

Finding the Fourth Proportional to 77,229.56, 115,845.52 and 30,482

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Solution

The fourth proportional to 77,229.56, 115,845.52 and 30,482 is: 45,723.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,229.56 : 115,845.52 = 30,482 : x
  2. Step 2: Convert to fraction form
    77,229.56/115,845.52 = 30,482/x
  3. Step 3: Cross multiply
    77,229.56x = 115,845.52 × 30,482
  4. Step 4: Simplify right side
    77,229.56x = 3,531,203,140.64
  5. Step 5: Solve for x
    x = 3,531,203,140.64/77,229.56
  6. Step 6: Final answer
    x = 45,723.47

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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.