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Finding the Fourth Proportional to 79,208.38, 109,280.64 and 45,192.44

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Solution

The fourth proportional to 79,208.38, 109,280.64 and 45,192.44 is: 62,350.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,208.38 : 109,280.64 = 45,192.44 : x
  2. Step 2: Convert to fraction form
    79,208.38/109,280.64 = 45,192.44/x
  3. Step 3: Cross multiply
    79,208.38x = 109,280.64 × 45,192.44
  4. Step 4: Simplify right side
    79,208.38x = 4,938,658,766.36
  5. Step 5: Solve for x
    x = 4,938,658,766.36/79,208.38
  6. Step 6: Final answer
    x = 62,350.21

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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.