Home / 43,122.22-64,678.78-11,535.47

Finding the Fourth Proportional to 43,122.22, 64,678.78 and 11,535.47

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Solution

The fourth proportional to 43,122.22, 64,678.78 and 11,535.47 is: 17,301.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,122.22 : 64,678.78 = 11,535.47 : x
  2. Step 2: Convert to fraction form
    43,122.22/64,678.78 = 11,535.47/x
  3. Step 3: Cross multiply
    43,122.22x = 64,678.78 × 11,535.47
  4. Step 4: Simplify right side
    43,122.22x = 746,100,126.33
  5. Step 5: Solve for x
    x = 746,100,126.33/43,122.22
  6. Step 6: Final answer
    x = 17,301.99

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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.