Home / 90,729.80-136,085.91-27,550.47

Finding the Fourth Proportional to 90,729.80, 136,085.91 and 27,550.47

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Solution

The fourth proportional to 90,729.80, 136,085.91 and 27,550.47 is: 41,323.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,729.80 : 136,085.91 = 27,550.47 : x
  2. Step 2: Convert to fraction form
    90,729.80/136,085.91 = 27,550.47/x
  3. Step 3: Cross multiply
    90,729.80x = 136,085.91 × 27,550.47
  4. Step 4: Simplify right side
    90,729.80x = 3,749,231,020.29
  5. Step 5: Solve for x
    x = 3,749,231,020.29/90,729.80
  6. Step 6: Final answer
    x = 41,323.04

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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.