Home / 79,180.79-109,280.36-48,548.47

Finding the Fourth Proportional to 79,180.79, 109,280.36 and 48,548.47

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Solution

The fourth proportional to 79,180.79, 109,280.36 and 48,548.47 is: 67,003.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,180.79 : 109,280.36 = 48,548.47 : x
  2. Step 2: Convert to fraction form
    79,180.79/109,280.36 = 48,548.47/x
  3. Step 3: Cross multiply
    79,180.79x = 109,280.36 × 48,548.47
  4. Step 4: Simplify right side
    79,180.79x = 5,305,393,611.28
  5. Step 5: Solve for x
    x = 5,305,393,611.28/79,180.79
  6. Step 6: Final answer
    x = 67,003.55

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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.