Home / 53,927.56-80,839.09-20,621.98

Finding the Fourth Proportional to 53,927.56, 80,839.09 and 20,621.98

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Solution

The fourth proportional to 53,927.56, 80,839.09 and 20,621.98 is: 30,912.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,927.56 : 80,839.09 = 20,621.98 : x
  2. Step 2: Convert to fraction form
    53,927.56/80,839.09 = 20,621.98/x
  3. Step 3: Cross multiply
    53,927.56x = 80,839.09 × 20,621.98
  4. Step 4: Simplify right side
    53,927.56x = 1,667,062,097.20
  5. Step 5: Solve for x
    x = 1,667,062,097.20/53,927.56
  6. Step 6: Final answer
    x = 30,912.99

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1.5x scale

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.