Home / 66,146.31-99,227.88-21,777.48

Finding the Fourth Proportional to 66,146.31, 99,227.88 and 21,777.48

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Solution

The fourth proportional to 66,146.31, 99,227.88 and 21,777.48 is: 32,668.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,146.31 : 99,227.88 = 21,777.48 : x
  2. Step 2: Convert to fraction form
    66,146.31/99,227.88 = 21,777.48/x
  3. Step 3: Cross multiply
    66,146.31x = 99,227.88 × 21,777.48
  4. Step 4: Simplify right side
    66,146.31x = 2,160,933,172.14
  5. Step 5: Solve for x
    x = 2,160,933,172.14/66,146.31
  6. Step 6: Final answer
    x = 32,668.99

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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.