Home / 53,383.28-80,080.38-18,318.38

Finding the Fourth Proportional to 53,383.28, 80,080.38 and 18,318.38

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Solution

The fourth proportional to 53,383.28, 80,080.38 and 18,318.38 is: 27,479.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,383.28 : 80,080.38 = 18,318.38 : x
  2. Step 2: Convert to fraction form
    53,383.28/80,080.38 = 18,318.38/x
  3. Step 3: Cross multiply
    53,383.28x = 80,080.38 × 18,318.38
  4. Step 4: Simplify right side
    53,383.28x = 1,466,942,430.98
  5. Step 5: Solve for x
    x = 1,466,942,430.98/53,383.28
  6. Step 6: Final answer
    x = 27,479.44

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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.