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Finding the Fourth Proportional to 79,694.88, 109,969.36 and 45,701.61

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Solution

The fourth proportional to 79,694.88, 109,969.36 and 45,701.61 is: 63,062.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,694.88 : 109,969.36 = 45,701.61 : x
  2. Step 2: Convert to fraction form
    79,694.88/109,969.36 = 45,701.61/x
  3. Step 3: Cross multiply
    79,694.88x = 109,969.36 × 45,701.61
  4. Step 4: Simplify right side
    79,694.88x = 5,025,776,802.67
  5. Step 5: Solve for x
    x = 5,025,776,802.67/79,694.88
  6. Step 6: Final answer
    x = 63,062.73

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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.