Home / 87,860.07-131,788.94-21,300.80

Finding the Fourth Proportional to 87,860.07, 131,788.94 and 21,300.80

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Solution

The fourth proportional to 87,860.07, 131,788.94 and 21,300.80 is: 31,950.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,860.07 : 131,788.94 = 21,300.80 : x
  2. Step 2: Convert to fraction form
    87,860.07/131,788.94 = 21,300.80/x
  3. Step 3: Cross multiply
    87,860.07x = 131,788.94 × 21,300.80
  4. Step 4: Simplify right side
    87,860.07x = 2,807,209,087.70
  5. Step 5: Solve for x
    x = 2,807,209,087.70/87,860.07
  6. Step 6: Final answer
    x = 31,950.91

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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.