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Finding the Fourth Proportional to 40,899.03, 61,366.47 and 19,855.23

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Solution

The fourth proportional to 40,899.03, 61,366.47 and 19,855.23 is: 29,791.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,899.03 : 61,366.47 = 19,855.23 : x
  2. Step 2: Convert to fraction form
    40,899.03/61,366.47 = 19,855.23/x
  3. Step 3: Cross multiply
    40,899.03x = 61,366.47 × 19,855.23
  4. Step 4: Simplify right side
    40,899.03x = 1,218,445,376.14
  5. Step 5: Solve for x
    x = 1,218,445,376.14/40,899.03
  6. Step 6: Final answer
    x = 29,791.55

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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.