Home / 74,356.45-111,537.78-21,765.94

Finding the Fourth Proportional to 74,356.45, 111,537.78 and 21,765.94

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Solution

The fourth proportional to 74,356.45, 111,537.78 and 21,765.94 is: 32,649.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,356.45 : 111,537.78 = 21,765.94 : x
  2. Step 2: Convert to fraction form
    74,356.45/111,537.78 = 21,765.94/x
  3. Step 3: Cross multiply
    74,356.45x = 111,537.78 × 21,765.94
  4. Step 4: Simplify right side
    74,356.45x = 2,427,724,627.21
  5. Step 5: Solve for x
    x = 2,427,724,627.21/74,356.45
  6. Step 6: Final answer
    x = 32,649.82

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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.