Home / 78,745.28-108,677-48,524.16

Finding the Fourth Proportional to 78,745.28, 108,677 and 48,524.16

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Solution

The fourth proportional to 78,745.28, 108,677 and 48,524.16 is: 66,968.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,745.28 : 108,677 = 48,524.16 : x
  2. Step 2: Convert to fraction form
    78,745.28/108,677 = 48,524.16/x
  3. Step 3: Cross multiply
    78,745.28x = 108,677 × 48,524.16
  4. Step 4: Simplify right side
    78,745.28x = 5,273,460,136.32
  5. Step 5: Solve for x
    x = 5,273,460,136.32/78,745.28
  6. Step 6: Final answer
    x = 66,968.59

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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.