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Finding the Fourth Proportional to 79,454.97, 109,663.51 and 45,005.87

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Solution

The fourth proportional to 79,454.97, 109,663.51 and 45,005.87 is: 62,116.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,454.97 : 109,663.51 = 45,005.87 : x
  2. Step 2: Convert to fraction form
    79,454.97/109,663.51 = 45,005.87/x
  3. Step 3: Cross multiply
    79,454.97x = 109,663.51 × 45,005.87
  4. Step 4: Simplify right side
    79,454.97x = 4,935,501,674.80
  5. Step 5: Solve for x
    x = 4,935,501,674.80/79,454.97
  6. Step 6: Final answer
    x = 62,116.97

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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.