Home / 53,653.15-80,448.11-20,375.56

Finding the Fourth Proportional to 53,653.15, 80,448.11 and 20,375.56

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Solution

The fourth proportional to 53,653.15, 80,448.11 and 20,375.56 is: 30,551.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,653.15 : 80,448.11 = 20,375.56 : x
  2. Step 2: Convert to fraction form
    53,653.15/80,448.11 = 20,375.56/x
  3. Step 3: Cross multiply
    53,653.15x = 80,448.11 × 20,375.56
  4. Step 4: Simplify right side
    53,653.15x = 1,639,174,788.07
  5. Step 5: Solve for x
    x = 1,639,174,788.07/53,653.15
  6. Step 6: Final answer
    x = 30,551.33

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1.5x scale

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.