Home / 74,433.70-111,650.55-66,139.30

Finding the Fourth Proportional to 74,433.70, 111,650.55 and 66,139.30

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Solution

The fourth proportional to 74,433.70, 111,650.55 and 66,139.30 is: 99,208.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,433.70 : 111,650.55 = 66,139.30 : x
  2. Step 2: Convert to fraction form
    74,433.70/111,650.55 = 66,139.30/x
  3. Step 3: Cross multiply
    74,433.70x = 111,650.55 × 66,139.30
  4. Step 4: Simplify right side
    74,433.70x = 7,384,489,221.62
  5. Step 5: Solve for x
    x = 7,384,489,221.62/74,433.70
  6. Step 6: Final answer
    x = 99,208.95

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1.5x scale

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.