Home / 53,815.11-80,723.15-18,754.71

Finding the Fourth Proportional to 53,815.11, 80,723.15 and 18,754.71

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Solution

The fourth proportional to 53,815.11, 80,723.15 and 18,754.71 is: 28,132.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,815.11 : 80,723.15 = 18,754.71 : x
  2. Step 2: Convert to fraction form
    53,815.11/80,723.15 = 18,754.71/x
  3. Step 3: Cross multiply
    53,815.11x = 80,723.15 × 18,754.71
  4. Step 4: Simplify right side
    53,815.11x = 1,513,939,268.54
  5. Step 5: Solve for x
    x = 1,513,939,268.54/53,815.11
  6. Step 6: Final answer
    x = 28,132.23

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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.