Home / 89,827.30-134,850.30-45,431.20

Finding the Fourth Proportional to 89,827.30, 134,850.30 and 45,431.20

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Solution

The fourth proportional to 89,827.30, 134,850.30 and 45,431.20 is: 68,202.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,827.30 : 134,850.30 = 45,431.20 : x
  2. Step 2: Convert to fraction form
    89,827.30/134,850.30 = 45,431.20/x
  3. Step 3: Cross multiply
    89,827.30x = 134,850.30 × 45,431.20
  4. Step 4: Simplify right side
    89,827.30x = 6,126,410,949.36
  5. Step 5: Solve for x
    x = 6,126,410,949.36/89,827.30
  6. Step 6: Final answer
    x = 68,202.11

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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.