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Finding the Fourth Proportional to 76,891.44, 106,113.24 and 43,356.72

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Solution

The fourth proportional to 76,891.44, 106,113.24 and 43,356.72 is: 59,833.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,891.44 : 106,113.24 = 43,356.72 : x
  2. Step 2: Convert to fraction form
    76,891.44/106,113.24 = 43,356.72/x
  3. Step 3: Cross multiply
    76,891.44x = 106,113.24 × 43,356.72
  4. Step 4: Simplify right side
    76,891.44x = 4,600,722,034.97
  5. Step 5: Solve for x
    x = 4,600,722,034.97/76,891.44
  6. Step 6: Final answer
    x = 59,833.99

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1.5x scale

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.