Home / 87,391.65-131,090.37-24,212.40

Finding the Fourth Proportional to 87,391.65, 131,090.37 and 24,212.40

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Solution

The fourth proportional to 87,391.65, 131,090.37 and 24,212.40 is: 36,319.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,391.65 : 131,090.37 = 24,212.40 : x
  2. Step 2: Convert to fraction form
    87,391.65/131,090.37 = 24,212.40/x
  3. Step 3: Cross multiply
    87,391.65x = 131,090.37 × 24,212.40
  4. Step 4: Simplify right side
    87,391.65x = 3,174,012,474.59
  5. Step 5: Solve for x
    x = 3,174,012,474.59/87,391.65
  6. Step 6: Final answer
    x = 36,319.40

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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.