Home / 61,639.29-92,469.31-19,531.12

Finding the Fourth Proportional to 61,639.29, 92,469.31 and 19,531.12

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Solution

The fourth proportional to 61,639.29, 92,469.31 and 19,531.12 is: 29,299.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,639.29 : 92,469.31 = 19,531.12 : x
  2. Step 2: Convert to fraction form
    61,639.29/92,469.31 = 19,531.12/x
  3. Step 3: Cross multiply
    61,639.29x = 92,469.31 × 19,531.12
  4. Step 4: Simplify right side
    61,639.29x = 1,806,029,189.93
  5. Step 5: Solve for x
    x = 1,806,029,189.93/61,639.29
  6. Step 6: Final answer
    x = 29,299.97

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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.