Home / 43,242.96-64,858.68-12,081.36

Finding the Fourth Proportional to 43,242.96, 64,858.68 and 12,081.36

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Solution

The fourth proportional to 43,242.96, 64,858.68 and 12,081.36 is: 18,120.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,242.96 : 64,858.68 = 12,081.36 : x
  2. Step 2: Convert to fraction form
    43,242.96/64,858.68 = 12,081.36/x
  3. Step 3: Cross multiply
    43,242.96x = 64,858.68 × 12,081.36
  4. Step 4: Simplify right side
    43,242.96x = 783,581,062.20
  5. Step 5: Solve for x
    x = 783,581,062.20/43,242.96
  6. Step 6: Final answer
    x = 18,120.43

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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.