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Finding the Fourth Proportional to 61,167.38, 91,751.06 and 19,614.38

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Solution

The fourth proportional to 61,167.38, 91,751.06 and 19,614.38 is: 29,421.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,167.38 : 91,751.06 = 19,614.38 : x
  2. Step 2: Convert to fraction form
    61,167.38/91,751.06 = 19,614.38/x
  3. Step 3: Cross multiply
    61,167.38x = 91,751.06 × 19,614.38
  4. Step 4: Simplify right side
    61,167.38x = 1,799,639,746.52
  5. Step 5: Solve for x
    x = 1,799,639,746.52/61,167.38
  6. Step 6: Final answer
    x = 29,421.56

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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.