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Finding the Fourth Proportional to 79,445.73, 109,637 and 43,148.54

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Solution

The fourth proportional to 79,445.73, 109,637 and 43,148.54 is: 59,546.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,445.73 : 109,637 = 43,148.54 : x
  2. Step 2: Convert to fraction form
    79,445.73/109,637 = 43,148.54/x
  3. Step 3: Cross multiply
    79,445.73x = 109,637 × 43,148.54
  4. Step 4: Simplify right side
    79,445.73x = 4,730,676,479.98
  5. Step 5: Solve for x
    x = 4,730,676,479.98/79,445.73
  6. Step 6: Final answer
    x = 59,546.01

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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.