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Finding the Fourth Proportional to 100,389.88, 150,551.64 and 33,813.48

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Solution

The fourth proportional to 100,389.88, 150,551.64 and 33,813.48 is: 50,709.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,389.88 : 150,551.64 = 33,813.48 : x
  2. Step 2: Convert to fraction form
    100,389.88/150,551.64 = 33,813.48/x
  3. Step 3: Cross multiply
    100,389.88x = 150,551.64 × 33,813.48
  4. Step 4: Simplify right side
    100,389.88x = 5,090,674,868.11
  5. Step 5: Solve for x
    x = 5,090,674,868.11/100,389.88
  6. Step 6: Final answer
    x = 50,709.04

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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.