Home / 74,529.45-111,630.15-66,218.85

Finding the Fourth Proportional to 74,529.45, 111,630.15 and 66,218.85

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Solution

The fourth proportional to 74,529.45, 111,630.15 and 66,218.85 is: 99,182.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,529.45 : 111,630.15 = 66,218.85 : x
  2. Step 2: Convert to fraction form
    74,529.45/111,630.15 = 66,218.85/x
  3. Step 3: Cross multiply
    74,529.45x = 111,630.15 × 66,218.85
  4. Step 4: Simplify right side
    74,529.45x = 7,392,020,158.33
  5. Step 5: Solve for x
    x = 7,392,020,158.33/74,529.45
  6. Step 6: Final answer
    x = 99,182.54

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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.