Home / 87,768.06-131,626.95-28,608.90

Finding the Fourth Proportional to 87,768.06, 131,626.95 and 28,608.90

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Solution

The fourth proportional to 87,768.06, 131,626.95 and 28,608.90 is: 42,905.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,768.06 : 131,626.95 = 28,608.90 : x
  2. Step 2: Convert to fraction form
    87,768.06/131,626.95 = 28,608.90/x
  3. Step 3: Cross multiply
    87,768.06x = 131,626.95 × 28,608.90
  4. Step 4: Simplify right side
    87,768.06x = 3,765,702,249.86
  5. Step 5: Solve for x
    x = 3,765,702,249.86/87,768.06
  6. Step 6: Final answer
    x = 42,905.16

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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.