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Finding the Fourth Proportional to 89,439.60, 134,175.60 and 44,954.40

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Solution

The fourth proportional to 89,439.60, 134,175.60 and 44,954.40 is: 67,439.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,439.60 : 134,175.60 = 44,954.40 : x
  2. Step 2: Convert to fraction form
    89,439.60/134,175.60 = 44,954.40/x
  3. Step 3: Cross multiply
    89,439.60x = 134,175.60 × 44,954.40
  4. Step 4: Simplify right side
    89,439.60x = 6,031,783,592.64
  5. Step 5: Solve for x
    x = 6,031,783,592.64/89,439.60
  6. Step 6: Final answer
    x = 67,439.74

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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.