Home / 74,150.78-111,237.02-21,553.43

Finding the Fourth Proportional to 74,150.78, 111,237.02 and 21,553.43

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Solution

The fourth proportional to 74,150.78, 111,237.02 and 21,553.43 is: 32,333.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,150.78 : 111,237.02 = 21,553.43 : x
  2. Step 2: Convert to fraction form
    74,150.78/111,237.02 = 21,553.43/x
  3. Step 3: Cross multiply
    74,150.78x = 111,237.02 × 21,553.43
  4. Step 4: Simplify right side
    74,150.78x = 2,397,539,323.98
  5. Step 5: Solve for x
    x = 2,397,539,323.98/74,150.78
  6. Step 6: Final answer
    x = 32,333.30

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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.