Home / 57,874.32-86,817.84-18,417.60

Finding the Fourth Proportional to 57,874.32, 86,817.84 and 18,417.60

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Solution

The fourth proportional to 57,874.32, 86,817.84 and 18,417.60 is: 27,628.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,874.32 : 86,817.84 = 18,417.60 : x
  2. Step 2: Convert to fraction form
    57,874.32/86,817.84 = 18,417.60/x
  3. Step 3: Cross multiply
    57,874.32x = 86,817.84 × 18,417.60
  4. Step 4: Simplify right side
    57,874.32x = 1,598,976,249.98
  5. Step 5: Solve for x
    x = 1,598,976,249.98/57,874.32
  6. Step 6: Final answer
    x = 27,628.42

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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.