Home / 87,883.07-131,824.79-31,762.80

Finding the Fourth Proportional to 87,883.07, 131,824.79 and 31,762.80

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Solution

The fourth proportional to 87,883.07, 131,824.79 and 31,762.80 is: 47,644.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,883.07 : 131,824.79 = 31,762.80 : x
  2. Step 2: Convert to fraction form
    87,883.07/131,824.79 = 31,762.80/x
  3. Step 3: Cross multiply
    87,883.07x = 131,824.79 × 31,762.80
  4. Step 4: Simplify right side
    87,883.07x = 4,187,124,400.11
  5. Step 5: Solve for x
    x = 4,187,124,400.11/87,883.07
  6. Step 6: Final answer
    x = 47,644.27

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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.