Home / 99,709.79-149,532.32-33,132.05

Finding the Fourth Proportional to 99,709.79, 149,532.32 and 33,132.05

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Solution

The fourth proportional to 99,709.79, 149,532.32 and 33,132.05 is: 49,687.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,709.79 : 149,532.32 = 33,132.05 : x
  2. Step 2: Convert to fraction form
    99,709.79/149,532.32 = 33,132.05/x
  3. Step 3: Cross multiply
    99,709.79x = 149,532.32 × 33,132.05
  4. Step 4: Simplify right side
    99,709.79x = 4,954,311,389.53
  5. Step 5: Solve for x
    x = 4,954,311,389.53/99,709.79
  6. Step 6: Final answer
    x = 49,687.31

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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.