Home / 87,778.76-131,668.14-48,315.56

Finding the Fourth Proportional to 87,778.76, 131,668.14 and 48,315.56

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Solution

The fourth proportional to 87,778.76, 131,668.14 and 48,315.56 is: 72,473.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,778.76 : 131,668.14 = 48,315.56 : x
  2. Step 2: Convert to fraction form
    87,778.76/131,668.14 = 48,315.56/x
  3. Step 3: Cross multiply
    87,778.76x = 131,668.14 × 48,315.56
  4. Step 4: Simplify right side
    87,778.76x = 6,361,619,918.26
  5. Step 5: Solve for x
    x = 6,361,619,918.26/87,778.76
  6. Step 6: Final answer
    x = 72,473.34

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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.