Home / 87,890.07-131,808.16-31,723.32

Finding the Fourth Proportional to 87,890.07, 131,808.16 and 31,723.32

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Solution

The fourth proportional to 87,890.07, 131,808.16 and 31,723.32 is: 47,575.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,890.07 : 131,808.16 = 31,723.32 : x
  2. Step 2: Convert to fraction form
    87,890.07/131,808.16 = 31,723.32/x
  3. Step 3: Cross multiply
    87,890.07x = 131,808.16 × 31,723.32
  4. Step 4: Simplify right side
    87,890.07x = 4,181,392,438.29
  5. Step 5: Solve for x
    x = 4,181,392,438.29/87,890.07
  6. Step 6: Final answer
    x = 47,575.25

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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.