Home / 66,201.20-99,305.04-21,827.80

Finding the Fourth Proportional to 66,201.20, 99,305.04 and 21,827.80

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Solution

The fourth proportional to 66,201.20, 99,305.04 and 21,827.80 is: 32,742.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,201.20 : 99,305.04 = 21,827.80 : x
  2. Step 2: Convert to fraction form
    66,201.20/99,305.04 = 21,827.80/x
  3. Step 3: Cross multiply
    66,201.20x = 99,305.04 × 21,827.80
  4. Step 4: Simplify right side
    66,201.20x = 2,167,610,552.11
  5. Step 5: Solve for x
    x = 2,167,610,552.11/66,201.20
  6. Step 6: Final answer
    x = 32,742.77

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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.