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Finding the Fourth Proportional to 66,485.44, 99,699.84 and 22,100.32

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Solution

The fourth proportional to 66,485.44, 99,699.84 and 22,100.32 is: 33,141.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,485.44 : 99,699.84 = 22,100.32 : x
  2. Step 2: Convert to fraction form
    66,485.44/99,699.84 = 22,100.32/x
  3. Step 3: Cross multiply
    66,485.44x = 99,699.84 × 22,100.32
  4. Step 4: Simplify right side
    66,485.44x = 2,203,398,367.95
  5. Step 5: Solve for x
    x = 2,203,398,367.95/66,485.44
  6. Step 6: Final answer
    x = 33,141.07

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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.