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Finding the Fourth Proportional to 79,830.88, 110,162.65 and 45,371.13

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Solution

The fourth proportional to 79,830.88, 110,162.65 and 45,371.13 is: 62,609.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,830.88 : 110,162.65 = 45,371.13 : x
  2. Step 2: Convert to fraction form
    79,830.88/110,162.65 = 45,371.13/x
  3. Step 3: Cross multiply
    79,830.88x = 110,162.65 × 45,371.13
  4. Step 4: Simplify right side
    79,830.88x = 4,998,203,914.29
  5. Step 5: Solve for x
    x = 4,998,203,914.29/79,830.88
  6. Step 6: Final answer
    x = 62,609.91

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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.