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Finding the Fourth Proportional to 79,179.31, 109,264.51 and 43,369.62

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Solution

The fourth proportional to 79,179.31, 109,264.51 and 43,369.62 is: 59,848.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,179.31 : 109,264.51 = 43,369.62 : x
  2. Step 2: Convert to fraction form
    79,179.31/109,264.51 = 43,369.62/x
  3. Step 3: Cross multiply
    79,179.31x = 109,264.51 × 43,369.62
  4. Step 4: Simplify right side
    79,179.31x = 4,738,760,278.19
  5. Step 5: Solve for x
    x = 4,738,760,278.19/79,179.31
  6. Step 6: Final answer
    x = 59,848.47

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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.