Home / 55,424.68-83,170.14-20,367.88

Finding the Fourth Proportional to 55,424.68, 83,170.14 and 20,367.88

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Solution

The fourth proportional to 55,424.68, 83,170.14 and 20,367.88 is: 30,563.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,424.68 : 83,170.14 = 20,367.88 : x
  2. Step 2: Convert to fraction form
    55,424.68/83,170.14 = 20,367.88/x
  3. Step 3: Cross multiply
    55,424.68x = 83,170.14 × 20,367.88
  4. Step 4: Simplify right side
    55,424.68x = 1,693,999,431.10
  5. Step 5: Solve for x
    x = 1,693,999,431.10/55,424.68
  6. Step 6: Final answer
    x = 30,563.99

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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.