Home / 87,812.03-131,723.72-30,878.96

Finding the Fourth Proportional to 87,812.03, 131,723.72 and 30,878.96

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Solution

The fourth proportional to 87,812.03, 131,723.72 and 30,878.96 is: 46,320.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,812.03 : 131,723.72 = 30,878.96 : x
  2. Step 2: Convert to fraction form
    87,812.03/131,723.72 = 30,878.96/x
  3. Step 3: Cross multiply
    87,812.03x = 131,723.72 × 30,878.96
  4. Step 4: Simplify right side
    87,812.03x = 4,067,490,783.71
  5. Step 5: Solve for x
    x = 4,067,490,783.71/87,812.03
  6. Step 6: Final answer
    x = 46,320.43

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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.