Home / 57,724.70-86,599.20-18,285.80

Finding the Fourth Proportional to 57,724.70, 86,599.20 and 18,285.80

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Solution

The fourth proportional to 57,724.70, 86,599.20 and 18,285.80 is: 27,432.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,724.70 : 86,599.20 = 18,285.80 : x
  2. Step 2: Convert to fraction form
    57,724.70/86,599.20 = 18,285.80/x
  3. Step 3: Cross multiply
    57,724.70x = 86,599.20 × 18,285.80
  4. Step 4: Simplify right side
    57,724.70x = 1,583,535,651.36
  5. Step 5: Solve for x
    x = 1,583,535,651.36/57,724.70
  6. Step 6: Final answer
    x = 27,432.55

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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.