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Finding the Fourth Proportional to 79,098.31, 109,167.92 and 45,106.86

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Solution

The fourth proportional to 79,098.31, 109,167.92 and 45,106.86 is: 62,254.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,098.31 : 109,167.92 = 45,106.86 : x
  2. Step 2: Convert to fraction form
    79,098.31/109,167.92 = 45,106.86/x
  3. Step 3: Cross multiply
    79,098.31x = 109,167.92 × 45,106.86
  4. Step 4: Simplify right side
    79,098.31x = 4,924,222,083.93
  5. Step 5: Solve for x
    x = 4,924,222,083.93/79,098.31
  6. Step 6: Final answer
    x = 62,254.45

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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.