Home / 66,291.31-99,449.34-21,949.28

Finding the Fourth Proportional to 66,291.31, 99,449.34 and 21,949.28

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Solution

The fourth proportional to 66,291.31, 99,449.34 and 21,949.28 is: 32,928.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,291.31 : 99,449.34 = 21,949.28 : x
  2. Step 2: Convert to fraction form
    66,291.31/99,449.34 = 21,949.28/x
  3. Step 3: Cross multiply
    66,291.31x = 99,449.34 × 21,949.28
  4. Step 4: Simplify right side
    66,291.31x = 2,182,841,202.85
  5. Step 5: Solve for x
    x = 2,182,841,202.85/66,291.31
  6. Step 6: Final answer
    x = 32,928.01

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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.