Home / 89,644.20-134,423.60-52,214.72

Finding the Fourth Proportional to 89,644.20, 134,423.60 and 52,214.72

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Solution

The fourth proportional to 89,644.20, 134,423.60 and 52,214.72 is: 78,297.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,644.20 : 134,423.60 = 52,214.72 : x
  2. Step 2: Convert to fraction form
    89,644.20/134,423.60 = 52,214.72/x
  3. Step 3: Cross multiply
    89,644.20x = 134,423.60 × 52,214.72
  4. Step 4: Simplify right side
    89,644.20x = 7,018,890,635.39
  5. Step 5: Solve for x
    x = 7,018,890,635.39/89,644.20
  6. Step 6: Final answer
    x = 78,297.21

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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.