Home / 43,282.18-64,918.41-12,119.86

Finding the Fourth Proportional to 43,282.18, 64,918.41 and 12,119.86

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Solution

The fourth proportional to 43,282.18, 64,918.41 and 12,119.86 is: 18,178.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,282.18 : 64,918.41 = 12,119.86 : x
  2. Step 2: Convert to fraction form
    43,282.18/64,918.41 = 12,119.86/x
  3. Step 3: Cross multiply
    43,282.18x = 64,918.41 × 12,119.86
  4. Step 4: Simplify right side
    43,282.18x = 786,802,040.62
  5. Step 5: Solve for x
    x = 786,802,040.62/43,282.18
  6. Step 6: Final answer
    x = 18,178.43

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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.