Home / 87,809.67-131,727.33-28,630.80

Finding the Fourth Proportional to 87,809.67, 131,727.33 and 28,630.80

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Solution

The fourth proportional to 87,809.67, 131,727.33 and 28,630.80 is: 42,950.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,809.67 : 131,727.33 = 28,630.80 : x
  2. Step 2: Convert to fraction form
    87,809.67/131,727.33 = 28,630.80/x
  3. Step 3: Cross multiply
    87,809.67x = 131,727.33 × 28,630.80
  4. Step 4: Simplify right side
    87,809.67x = 3,771,458,839.76
  5. Step 5: Solve for x
    x = 3,771,458,839.76/87,809.67
  6. Step 6: Final answer
    x = 42,950.38

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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.