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Finding the Fourth Proportional to 89,352.80, 134,043.76 and 30,192

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Solution

The fourth proportional to 89,352.80, 134,043.76 and 30,192 is: 45,292.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,352.80 : 134,043.76 = 30,192 : x
  2. Step 2: Convert to fraction form
    89,352.80/134,043.76 = 30,192/x
  3. Step 3: Cross multiply
    89,352.80x = 134,043.76 × 30,192
  4. Step 4: Simplify right side
    89,352.80x = 4,047,049,201.92
  5. Step 5: Solve for x
    x = 4,047,049,201.92/89,352.80
  6. Step 6: Final answer
    x = 45,292.92

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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.