Home / 57,723.60-86,563.80-20,269.20

Finding the Fourth Proportional to 57,723.60, 86,563.80 and 20,269.20

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Solution

The fourth proportional to 57,723.60, 86,563.80 and 20,269.20 is: 30,396.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,723.60 : 86,563.80 = 20,269.20 : x
  2. Step 2: Convert to fraction form
    57,723.60/86,563.80 = 20,269.20/x
  3. Step 3: Cross multiply
    57,723.60x = 86,563.80 × 20,269.20
  4. Step 4: Simplify right side
    57,723.60x = 1,754,578,974.96
  5. Step 5: Solve for x
    x = 1,754,578,974.96/57,723.60
  6. Step 6: Final answer
    x = 30,396.22

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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.