Home / 87,343.69-131,009.06-31,177.39

Finding the Fourth Proportional to 87,343.69, 131,009.06 and 31,177.39

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Solution

The fourth proportional to 87,343.69, 131,009.06 and 31,177.39 is: 46,763.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,343.69 : 131,009.06 = 31,177.39 : x
  2. Step 2: Convert to fraction form
    87,343.69/131,009.06 = 31,177.39/x
  3. Step 3: Cross multiply
    87,343.69x = 131,009.06 × 31,177.39
  4. Step 4: Simplify right side
    87,343.69x = 4,084,520,401.27
  5. Step 5: Solve for x
    x = 4,084,520,401.27/87,343.69
  6. Step 6: Final answer
    x = 46,763.77

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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.