Home / 87,513.48-131,237.82-31,344.84

Finding the Fourth Proportional to 87,513.48, 131,237.82 and 31,344.84

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Solution

The fourth proportional to 87,513.48, 131,237.82 and 31,344.84 is: 47,005.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,513.48 : 131,237.82 = 31,344.84 : x
  2. Step 2: Convert to fraction form
    87,513.48/131,237.82 = 31,344.84/x
  3. Step 3: Cross multiply
    87,513.48x = 131,237.82 × 31,344.84
  4. Step 4: Simplify right side
    87,513.48x = 4,113,628,469.85
  5. Step 5: Solve for x
    x = 4,113,628,469.85/87,513.48
  6. Step 6: Final answer
    x = 47,005.66

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1.5x scale

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.