Home / 87,345.28-131,010.60-31,226.86

Finding the Fourth Proportional to 87,345.28, 131,010.60 and 31,226.86

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Solution

The fourth proportional to 87,345.28, 131,010.60 and 31,226.86 is: 46,837.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,345.28 : 131,010.60 = 31,226.86 : x
  2. Step 2: Convert to fraction form
    87,345.28/131,010.60 = 31,226.86/x
  3. Step 3: Cross multiply
    87,345.28x = 131,010.60 × 31,226.86
  4. Step 4: Simplify right side
    87,345.28x = 4,091,049,664.72
  5. Step 5: Solve for x
    x = 4,091,049,664.72/87,345.28
  6. Step 6: Final answer
    x = 46,837.67

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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.