Home / 61,218.38-91,827.30-21,776.96

Finding the Fourth Proportional to 61,218.38, 91,827.30 and 21,776.96

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Solution

The fourth proportional to 61,218.38, 91,827.30 and 21,776.96 is: 32,665.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,218.38 : 91,827.30 = 21,776.96 : x
  2. Step 2: Convert to fraction form
    61,218.38/91,827.30 = 21,776.96/x
  3. Step 3: Cross multiply
    61,218.38x = 91,827.30 × 21,776.96
  4. Step 4: Simplify right side
    61,218.38x = 1,999,719,439.01
  5. Step 5: Solve for x
    x = 1,999,719,439.01/61,218.38
  6. Step 6: Final answer
    x = 32,665.34

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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.