Home / 87,705.63-131,525.78-31,530.41

Finding the Fourth Proportional to 87,705.63, 131,525.78 and 31,530.41

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Solution

The fourth proportional to 87,705.63, 131,525.78 and 31,530.41 is: 47,283.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,705.63 : 131,525.78 = 31,530.41 : x
  2. Step 2: Convert to fraction form
    87,705.63/131,525.78 = 31,530.41/x
  3. Step 3: Cross multiply
    87,705.63x = 131,525.78 × 31,530.41
  4. Step 4: Simplify right side
    87,705.63x = 4,147,061,190.17
  5. Step 5: Solve for x
    x = 4,147,061,190.17/87,705.63
  6. Step 6: Final answer
    x = 47,283.87

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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.