Home / 66,086.33-99,096.62-21,101.87

Finding the Fourth Proportional to 66,086.33, 99,096.62 and 21,101.87

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Solution

The fourth proportional to 66,086.33, 99,096.62 and 21,101.87 is: 31,642.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,086.33 : 99,096.62 = 21,101.87 : x
  2. Step 2: Convert to fraction form
    66,086.33/99,096.62 = 21,101.87/x
  3. Step 3: Cross multiply
    66,086.33x = 99,096.62 × 21,101.87
  4. Step 4: Simplify right side
    66,086.33x = 2,091,123,577.49
  5. Step 5: Solve for x
    x = 2,091,123,577.49/66,086.33
  6. Step 6: Final answer
    x = 31,642.30

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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.