Home / 74,190.32-111,240.62-29,157.78

Finding the Fourth Proportional to 74,190.32, 111,240.62 and 29,157.78

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Solution

The fourth proportional to 74,190.32, 111,240.62 and 29,157.78 is: 43,719.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,190.32 : 111,240.62 = 29,157.78 : x
  2. Step 2: Convert to fraction form
    74,190.32/111,240.62 = 29,157.78/x
  3. Step 3: Cross multiply
    74,190.32x = 111,240.62 × 29,157.78
  4. Step 4: Simplify right side
    74,190.32x = 3,243,529,525.02
  5. Step 5: Solve for x
    x = 3,243,529,525.02/74,190.32
  6. Step 6: Final answer
    x = 43,719.04

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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.