Home / 43,138.36-64,674.42-38,742.40

Finding the Fourth Proportional to 43,138.36, 64,674.42 and 38,742.40

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Solution

The fourth proportional to 43,138.36, 64,674.42 and 38,742.40 is: 58,083.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,138.36 : 64,674.42 = 38,742.40 : x
  2. Step 2: Convert to fraction form
    43,138.36/64,674.42 = 38,742.40/x
  3. Step 3: Cross multiply
    43,138.36x = 64,674.42 × 38,742.40
  4. Step 4: Simplify right side
    43,138.36x = 2,505,642,249.41
  5. Step 5: Solve for x
    x = 2,505,642,249.41/43,138.36
  6. Step 6: Final answer
    x = 58,083.86

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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.