Home / 55,621.14-83,426.85-20,561.10

Finding the Fourth Proportional to 55,621.14, 83,426.85 and 20,561.10

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Solution

The fourth proportional to 55,621.14, 83,426.85 and 20,561.10 is: 30,839.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,621.14 : 83,426.85 = 20,561.10 : x
  2. Step 2: Convert to fraction form
    55,621.14/83,426.85 = 20,561.10/x
  3. Step 3: Cross multiply
    55,621.14x = 83,426.85 × 20,561.10
  4. Step 4: Simplify right side
    55,621.14x = 1,715,347,805.54
  5. Step 5: Solve for x
    x = 1,715,347,805.54/55,621.14
  6. Step 6: Final answer
    x = 30,839.85

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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.