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Finding the Fourth Proportional to 66,550, 99,803.48 and 22,164.88

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Solution

The fourth proportional to 66,550, 99,803.48 and 22,164.88 is: 33,240.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,550 : 99,803.48 = 22,164.88 : x
  2. Step 2: Convert to fraction form
    66,550/99,803.48 = 22,164.88/x
  3. Step 3: Cross multiply
    66,550x = 99,803.48 × 22,164.88
  4. Step 4: Simplify right side
    66,550x = 2,212,132,157.78
  5. Step 5: Solve for x
    x = 2,212,132,157.78/66,550
  6. Step 6: Final answer
    x = 33,240.15

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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.