Home / 55,409.22-83,124.78-20,349.18

Finding the Fourth Proportional to 55,409.22, 83,124.78 and 20,349.18

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Solution

The fourth proportional to 55,409.22, 83,124.78 and 20,349.18 is: 30,527.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,409.22 : 83,124.78 = 20,349.18 : x
  2. Step 2: Convert to fraction form
    55,409.22/83,124.78 = 20,349.18/x
  3. Step 3: Cross multiply
    55,409.22x = 83,124.78 × 20,349.18
  4. Step 4: Simplify right side
    55,409.22x = 1,691,521,110.68
  5. Step 5: Solve for x
    x = 1,691,521,110.68/55,409.22
  6. Step 6: Final answer
    x = 30,527.79

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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.