Home / 55,600.26-76,728.62-30,449.76

Finding the Fourth Proportional to 55,600.26, 76,728.62 and 30,449.76

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Solution

The fourth proportional to 55,600.26, 76,728.62 and 30,449.76 is: 42,020.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,600.26 : 76,728.62 = 30,449.76 : x
  2. Step 2: Convert to fraction form
    55,600.26/76,728.62 = 30,449.76/x
  3. Step 3: Cross multiply
    55,600.26x = 76,728.62 × 30,449.76
  4. Step 4: Simplify right side
    55,600.26x = 2,336,368,064.13
  5. Step 5: Solve for x
    x = 2,336,368,064.13/55,600.26
  6. Step 6: Final answer
    x = 42,020.81

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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.