Home / 66,938.78-100,379-22,557.26

Finding the Fourth Proportional to 66,938.78, 100,379 and 22,557.26

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Solution

The fourth proportional to 66,938.78, 100,379 and 22,557.26 is: 33,826.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,938.78 : 100,379 = 22,557.26 : x
  2. Step 2: Convert to fraction form
    66,938.78/100,379 = 22,557.26/x
  3. Step 3: Cross multiply
    66,938.78x = 100,379 × 22,557.26
  4. Step 4: Simplify right side
    66,938.78x = 2,264,275,201.54
  5. Step 5: Solve for x
    x = 2,264,275,201.54/66,938.78
  6. Step 6: Final answer
    x = 33,826.06

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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.