Home / 55,527.28-76,628.82-30,376.78

Finding the Fourth Proportional to 55,527.28, 76,628.82 and 30,376.78

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Solution

The fourth proportional to 55,527.28, 76,628.82 and 30,376.78 is: 41,920.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,527.28 : 76,628.82 = 30,376.78 : x
  2. Step 2: Convert to fraction form
    55,527.28/76,628.82 = 30,376.78/x
  3. Step 3: Cross multiply
    55,527.28x = 76,628.82 × 30,376.78
  4. Step 4: Simplify right side
    55,527.28x = 2,327,736,806.80
  5. Step 5: Solve for x
    x = 2,327,736,806.80/55,527.28
  6. Step 6: Final answer
    x = 41,920.60

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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.