Home / 43,172.35-64,767.28-18,212.48

Finding the Fourth Proportional to 43,172.35, 64,767.28 and 18,212.48

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Solution

The fourth proportional to 43,172.35, 64,767.28 and 18,212.48 is: 27,322.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,172.35 : 64,767.28 = 18,212.48 : x
  2. Step 2: Convert to fraction form
    43,172.35/64,767.28 = 18,212.48/x
  3. Step 3: Cross multiply
    43,172.35x = 64,767.28 × 18,212.48
  4. Step 4: Simplify right side
    43,172.35x = 1,179,572,791.65
  5. Step 5: Solve for x
    x = 1,179,572,791.65/43,172.35
  6. Step 6: Final answer
    x = 27,322.41

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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.