Home / 55,381.68-82,940.04-30,383.28

Finding the Fourth Proportional to 55,381.68, 82,940.04 and 30,383.28

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Solution

The fourth proportional to 55,381.68, 82,940.04 and 30,383.28 is: 45,502.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,381.68 : 82,940.04 = 30,383.28 : x
  2. Step 2: Convert to fraction form
    55,381.68/82,940.04 = 30,383.28/x
  3. Step 3: Cross multiply
    55,381.68x = 82,940.04 × 30,383.28
  4. Step 4: Simplify right side
    55,381.68x = 2,519,990,458.53
  5. Step 5: Solve for x
    x = 2,519,990,458.53/55,381.68
  6. Step 6: Final answer
    x = 45,502.24

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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.