Home / 43,185.11-64,749.83-18,218.48

Finding the Fourth Proportional to 43,185.11, 64,749.83 and 18,218.48

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Solution

The fourth proportional to 43,185.11, 64,749.83 and 18,218.48 is: 27,315.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,185.11 : 64,749.83 = 18,218.48 : x
  2. Step 2: Convert to fraction form
    43,185.11/64,749.83 = 18,218.48/x
  3. Step 3: Cross multiply
    43,185.11x = 64,749.83 × 18,218.48
  4. Step 4: Simplify right side
    43,185.11x = 1,179,643,068.02
  5. Step 5: Solve for x
    x = 1,179,643,068.02/43,185.11
  6. Step 6: Final answer
    x = 27,315.97

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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.