Home / 66,207.30-99,284.55-21,821.70

Finding the Fourth Proportional to 66,207.30, 99,284.55 and 21,821.70

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Solution

The fourth proportional to 66,207.30, 99,284.55 and 21,821.70 is: 32,723.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,207.30 : 99,284.55 = 21,821.70 : x
  2. Step 2: Convert to fraction form
    66,207.30/99,284.55 = 21,821.70/x
  3. Step 3: Cross multiply
    66,207.30x = 99,284.55 × 21,821.70
  4. Step 4: Simplify right side
    66,207.30x = 2,166,557,664.74
  5. Step 5: Solve for x
    x = 2,166,557,664.74/66,207.30
  6. Step 6: Final answer
    x = 32,723.85

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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.