Home / 87,441.12-120,668.76-49,717.68

Finding the Fourth Proportional to 87,441.12, 120,668.76 and 49,717.68

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Solution

The fourth proportional to 87,441.12, 120,668.76 and 49,717.68 is: 68,610.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,441.12 : 120,668.76 = 49,717.68 : x
  2. Step 2: Convert to fraction form
    87,441.12/120,668.76 = 49,717.68/x
  3. Step 3: Cross multiply
    87,441.12x = 120,668.76 × 49,717.68
  4. Step 4: Simplify right side
    87,441.12x = 5,999,370,795.68
  5. Step 5: Solve for x
    x = 5,999,370,795.68/87,441.12
  6. Step 6: Final answer
    x = 68,610.41

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.