Home / 74,230.70-111,346.05-66,065.90

Finding the Fourth Proportional to 74,230.70, 111,346.05 and 66,065.90

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Solution

The fourth proportional to 74,230.70, 111,346.05 and 66,065.90 is: 99,098.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,230.70 : 111,346.05 = 66,065.90 : x
  2. Step 2: Convert to fraction form
    74,230.70/111,346.05 = 66,065.90/x
  3. Step 3: Cross multiply
    74,230.70x = 111,346.05 × 66,065.90
  4. Step 4: Simplify right side
    74,230.70x = 7,356,177,004.70
  5. Step 5: Solve for x
    x = 7,356,177,004.70/74,230.70
  6. Step 6: Final answer
    x = 99,098.85

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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.