Home / 87,347.53-131,048.99-31,186.45

Finding the Fourth Proportional to 87,347.53, 131,048.99 and 31,186.45

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Solution

The fourth proportional to 87,347.53, 131,048.99 and 31,186.45 is: 46,789.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,347.53 : 131,048.99 = 31,186.45 : x
  2. Step 2: Convert to fraction form
    87,347.53/131,048.99 = 31,186.45/x
  3. Step 3: Cross multiply
    87,347.53x = 131,048.99 × 31,186.45
  4. Step 4: Simplify right side
    87,347.53x = 4,086,952,618.25
  5. Step 5: Solve for x
    x = 4,086,952,618.25/87,347.53
  6. Step 6: Final answer
    x = 46,789.56

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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.