Home / 88,579.20-132,577.20-78,081.60

Finding the Fourth Proportional to 88,579.20, 132,577.20 and 78,081.60

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Solution

The fourth proportional to 88,579.20, 132,577.20 and 78,081.60 is: 116,865.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,579.20 : 132,577.20 = 78,081.60 : x
  2. Step 2: Convert to fraction form
    88,579.20/132,577.20 = 78,081.60/x
  3. Step 3: Cross multiply
    88,579.20x = 132,577.20 × 78,081.60
  4. Step 4: Simplify right side
    88,579.20x = 10,351,839,899.52
  5. Step 5: Solve for x
    x = 10,351,839,899.52/88,579.20
  6. Step 6: Final answer
    x = 116,865.36

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.