Home / 53,406.37-80,115.05-20,154.43

Finding the Fourth Proportional to 53,406.37, 80,115.05 and 20,154.43

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Solution

The fourth proportional to 53,406.37, 80,115.05 and 20,154.43 is: 30,233.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,406.37 : 80,115.05 = 20,154.43 : x
  2. Step 2: Convert to fraction form
    53,406.37/80,115.05 = 20,154.43/x
  3. Step 3: Cross multiply
    53,406.37x = 80,115.05 × 20,154.43
  4. Step 4: Simplify right side
    53,406.37x = 1,614,673,167.17
  5. Step 5: Solve for x
    x = 1,614,673,167.17/53,406.37
  6. Step 6: Final answer
    x = 30,233.72

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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.