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Finding the Fourth Proportional to 55,357, 76,427.22 and 35,519.56

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Solution

The fourth proportional to 55,357, 76,427.22 and 35,519.56 is: 49,039.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,357 : 76,427.22 = 35,519.56 : x
  2. Step 2: Convert to fraction form
    55,357/76,427.22 = 35,519.56/x
  3. Step 3: Cross multiply
    55,357x = 76,427.22 × 35,519.56
  4. Step 4: Simplify right side
    55,357x = 2,714,661,226.42
  5. Step 5: Solve for x
    x = 2,714,661,226.42/55,357
  6. Step 6: Final answer
    x = 49,039.17

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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.