Home / 43,239.90-64,742.60-22,419.66

Finding the Fourth Proportional to 43,239.90, 64,742.60 and 22,419.66

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Solution

The fourth proportional to 43,239.90, 64,742.60 and 22,419.66 is: 33,568.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,239.90 : 64,742.60 = 22,419.66 : x
  2. Step 2: Convert to fraction form
    43,239.90/64,742.60 = 22,419.66/x
  3. Step 3: Cross multiply
    43,239.90x = 64,742.60 × 22,419.66
  4. Step 4: Simplify right side
    43,239.90x = 1,451,507,135.57
  5. Step 5: Solve for x
    x = 1,451,507,135.57/43,239.90
  6. Step 6: Final answer
    x = 33,568.70

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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.