Home / 43,287.90-64,933.47-12,122.34

Finding the Fourth Proportional to 43,287.90, 64,933.47 and 12,122.34

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Solution

The fourth proportional to 43,287.90, 64,933.47 and 12,122.34 is: 18,183.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,287.90 : 64,933.47 = 12,122.34 : x
  2. Step 2: Convert to fraction form
    43,287.90/64,933.47 = 12,122.34/x
  3. Step 3: Cross multiply
    43,287.90x = 64,933.47 × 12,122.34
  4. Step 4: Simplify right side
    43,287.90x = 787,145,600.72
  5. Step 5: Solve for x
    x = 787,145,600.72/43,287.90
  6. Step 6: Final answer
    x = 18,183.96

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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.