Home / 87,172.56-120,299.90-48,934.86

Finding the Fourth Proportional to 87,172.56, 120,299.90 and 48,934.86

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Solution

The fourth proportional to 87,172.56, 120,299.90 and 48,934.86 is: 67,531.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,172.56 : 120,299.90 = 48,934.86 : x
  2. Step 2: Convert to fraction form
    87,172.56/120,299.90 = 48,934.86/x
  3. Step 3: Cross multiply
    87,172.56x = 120,299.90 × 48,934.86
  4. Step 4: Simplify right side
    87,172.56x = 5,886,858,519.84
  5. Step 5: Solve for x
    x = 5,886,858,519.84/87,172.56
  6. Step 6: Final answer
    x = 67,531.10

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.