Home / 55,520.28-76,619.16-30,369.78

Finding the Fourth Proportional to 55,520.28, 76,619.16 and 30,369.78

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Solution

The fourth proportional to 55,520.28, 76,619.16 and 30,369.78 is: 41,910.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,520.28 : 76,619.16 = 30,369.78 : x
  2. Step 2: Convert to fraction form
    55,520.28/76,619.16 = 30,369.78/x
  3. Step 3: Cross multiply
    55,520.28x = 76,619.16 × 30,369.78
  4. Step 4: Simplify right side
    55,520.28x = 2,326,907,032.98
  5. Step 5: Solve for x
    x = 2,326,907,032.98/55,520.28
  6. Step 6: Final answer
    x = 41,910.94

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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.