Home / 55,311.68-76,330.10-30,161.18

Finding the Fourth Proportional to 55,311.68, 76,330.10 and 30,161.18

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Solution

The fourth proportional to 55,311.68, 76,330.10 and 30,161.18 is: 41,622.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,311.68 : 76,330.10 = 30,161.18 : x
  2. Step 2: Convert to fraction form
    55,311.68/76,330.10 = 30,161.18/x
  3. Step 3: Cross multiply
    55,311.68x = 76,330.10 × 30,161.18
  4. Step 4: Simplify right side
    55,311.68x = 2,302,206,151.75
  5. Step 5: Solve for x
    x = 2,302,206,151.75/55,311.68
  6. Step 6: Final answer
    x = 41,622.42

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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.