Home / 74,138.89-111,224.66-21,552.47

Finding the Fourth Proportional to 74,138.89, 111,224.66 and 21,552.47

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Solution

The fourth proportional to 74,138.89, 111,224.66 and 21,552.47 is: 32,333.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,138.89 : 111,224.66 = 21,552.47 : x
  2. Step 2: Convert to fraction form
    74,138.89/111,224.66 = 21,552.47/x
  3. Step 3: Cross multiply
    74,138.89x = 111,224.66 × 21,552.47
  4. Step 4: Simplify right side
    74,138.89x = 2,397,166,147.91
  5. Step 5: Solve for x
    x = 2,397,166,147.91/74,138.89
  6. Step 6: Final answer
    x = 32,333.45

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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.