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Finding the Fourth Proportional to 78,377.37, 108,167.45 and 44,391.80

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Solution

The fourth proportional to 78,377.37, 108,167.45 and 44,391.80 is: 61,264.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,377.37 : 108,167.45 = 44,391.80 : x
  2. Step 2: Convert to fraction form
    78,377.37/108,167.45 = 44,391.80/x
  3. Step 3: Cross multiply
    78,377.37x = 108,167.45 × 44,391.80
  4. Step 4: Simplify right side
    78,377.37x = 4,801,747,044.11
  5. Step 5: Solve for x
    x = 4,801,747,044.11/78,377.37
  6. Step 6: Final answer
    x = 61,264.46

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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.