Home / 61,201.28-91,801.92-19,677.44

Finding the Fourth Proportional to 61,201.28, 91,801.92 and 19,677.44

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Solution

The fourth proportional to 61,201.28, 91,801.92 and 19,677.44 is: 29,516.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,201.28 : 91,801.92 = 19,677.44 : x
  2. Step 2: Convert to fraction form
    61,201.28/91,801.92 = 19,677.44/x
  3. Step 3: Cross multiply
    61,201.28x = 91,801.92 × 19,677.44
  4. Step 4: Simplify right side
    61,201.28x = 1,806,426,772.68
  5. Step 5: Solve for x
    x = 1,806,426,772.68/61,201.28
  6. Step 6: Final answer
    x = 29,516.16

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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.