Home / 78,443.44-118,092.00-71,468.27

Finding the Fourth Proportional to 78,443.44, 118,092.00 and 71,468.27

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Solution

The fourth proportional to 78,443.44, 118,092.00 and 71,468.27 is: 107,591.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,443.44 : 118,092.00 = 71,468.27 : x
  2. Step 2: Convert to fraction form
    78,443.44/118,092.00 = 71,468.27/x
  3. Step 3: Cross multiply
    78,443.44x = 118,092.00 × 71,468.27
  4. Step 4: Simplify right side
    78,443.44x = 8,439,831,524.49
  5. Step 5: Solve for x
    x = 8,439,831,524.49/78,443.44
  6. Step 6: Final answer
    x = 107,591.30

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.