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Finding the Fourth Proportional to 79,262.94, 109,287.21 and 68,488.34

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Solution

The fourth proportional to 79,262.94, 109,287.21 and 68,488.34 is: 94,431.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,262.94 : 109,287.21 = 68,488.34 : x
  2. Step 2: Convert to fraction form
    79,262.94/109,287.21 = 68,488.34/x
  3. Step 3: Cross multiply
    79,262.94x = 109,287.21 × 68,488.34
  4. Step 4: Simplify right side
    79,262.94x = 7,484,899,596.13
  5. Step 5: Solve for x
    x = 7,484,899,596.13/79,262.94
  6. Step 6: Final answer
    x = 94,431.26

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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.