Home / 74,489.70-111,570.52-66,179.10

Finding the Fourth Proportional to 74,489.70, 111,570.52 and 66,179.10

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Solution

The fourth proportional to 74,489.70, 111,570.52 and 66,179.10 is: 99,122.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,489.70 : 111,570.52 = 66,179.10 : x
  2. Step 2: Convert to fraction form
    74,489.70/111,570.52 = 66,179.10/x
  3. Step 3: Cross multiply
    74,489.70x = 111,570.52 × 66,179.10
  4. Step 4: Simplify right side
    74,489.70x = 7,383,636,600.13
  5. Step 5: Solve for x
    x = 7,383,636,600.13/74,489.70
  6. Step 6: Final answer
    x = 99,122.92

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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.