Home / 89,622.40-134,433.60-68,627.20

Finding the Fourth Proportional to 89,622.40, 134,433.60 and 68,627.20

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Solution

The fourth proportional to 89,622.40, 134,433.60 and 68,627.20 is: 102,940.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,622.40 : 134,433.60 = 68,627.20 : x
  2. Step 2: Convert to fraction form
    89,622.40/134,433.60 = 68,627.20/x
  3. Step 3: Cross multiply
    89,622.40x = 134,433.60 × 68,627.20
  4. Step 4: Simplify right side
    89,622.40x = 9,225,801,553.92
  5. Step 5: Solve for x
    x = 9,225,801,553.92/89,622.40
  6. Step 6: Final answer
    x = 102,940.80

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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.