Home / 66,214.56-99,342.58-21,872.46

Finding the Fourth Proportional to 66,214.56, 99,342.58 and 21,872.46

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Solution

The fourth proportional to 66,214.56, 99,342.58 and 21,872.46 is: 32,815.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,214.56 : 99,342.58 = 21,872.46 : x
  2. Step 2: Convert to fraction form
    66,214.56/99,342.58 = 21,872.46/x
  3. Step 3: Cross multiply
    66,214.56x = 99,342.58 × 21,872.46
  4. Step 4: Simplify right side
    66,214.56x = 2,172,866,607.35
  5. Step 5: Solve for x
    x = 2,172,866,607.35/66,214.56
  6. Step 6: Final answer
    x = 32,815.54

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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.