Home / 66,486.06-99,659.08-22,100.90

Finding the Fourth Proportional to 66,486.06, 99,659.08 and 22,100.90

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Solution

The fourth proportional to 66,486.06, 99,659.08 and 22,100.90 is: 33,128.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,486.06 : 99,659.08 = 22,100.90 : x
  2. Step 2: Convert to fraction form
    66,486.06/99,659.08 = 22,100.90/x
  3. Step 3: Cross multiply
    66,486.06x = 99,659.08 × 22,100.90
  4. Step 4: Simplify right side
    66,486.06x = 2,202,555,361.17
  5. Step 5: Solve for x
    x = 2,202,555,361.17/66,486.06
  6. Step 6: Final answer
    x = 33,128.08

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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.