Home / 99,621.78-149,432.40-33,066.92

Finding the Fourth Proportional to 99,621.78, 149,432.40 and 33,066.92

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Solution

The fourth proportional to 99,621.78, 149,432.40 and 33,066.92 is: 49,600.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,621.78 : 149,432.40 = 33,066.92 : x
  2. Step 2: Convert to fraction form
    99,621.78/149,432.40 = 33,066.92/x
  3. Step 3: Cross multiply
    99,621.78x = 149,432.40 × 33,066.92
  4. Step 4: Simplify right side
    99,621.78x = 4,941,268,469.05
  5. Step 5: Solve for x
    x = 4,941,268,469.05/99,621.78
  6. Step 6: Final answer
    x = 49,600.28

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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.