Home / 77,963.72-107,589.79-43,972.10

Finding the Fourth Proportional to 77,963.72, 107,589.79 and 43,972.10

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Solution

The fourth proportional to 77,963.72, 107,589.79 and 43,972.10 is: 60,681.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,963.72 : 107,589.79 = 43,972.10 : x
  2. Step 2: Convert to fraction form
    77,963.72/107,589.79 = 43,972.10/x
  3. Step 3: Cross multiply
    77,963.72x = 107,589.79 × 43,972.10
  4. Step 4: Simplify right side
    77,963.72x = 4,730,949,283.19
  5. Step 5: Solve for x
    x = 4,730,949,283.19/77,963.72
  6. Step 6: Final answer
    x = 60,681.42

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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.