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Finding the Fourth Proportional to 100,546.72, 150,820.48 and 33,987.36

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Solution

The fourth proportional to 100,546.72, 150,820.48 and 33,987.36 is: 50,981.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,546.72 : 150,820.48 = 33,987.36 : x
  2. Step 2: Convert to fraction form
    100,546.72/150,820.48 = 33,987.36/x
  3. Step 3: Cross multiply
    100,546.72x = 150,820.48 × 33,987.36
  4. Step 4: Simplify right side
    100,546.72x = 5,125,989,949.13
  5. Step 5: Solve for x
    x = 5,125,989,949.13/100,546.72
  6. Step 6: Final answer
    x = 50,981.18

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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.