Home / 87,875.93-131,786.63-31,708.75

Finding the Fourth Proportional to 87,875.93, 131,786.63 and 31,708.75

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Solution

The fourth proportional to 87,875.93, 131,786.63 and 31,708.75 is: 47,553.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,875.93 : 131,786.63 = 31,708.75 : x
  2. Step 2: Convert to fraction form
    87,875.93/131,786.63 = 31,708.75/x
  3. Step 3: Cross multiply
    87,875.93x = 131,786.63 × 31,708.75
  4. Step 4: Simplify right side
    87,875.93x = 4,178,788,486.54
  5. Step 5: Solve for x
    x = 4,178,788,486.54/87,875.93
  6. Step 6: Final answer
    x = 47,553.28

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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.