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Finding the Fourth Proportional to 40,676.72, 61,001.01 and 19,326.96

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Solution

The fourth proportional to 40,676.72, 61,001.01 and 19,326.96 is: 28,983.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,676.72 : 61,001.01 = 19,326.96 : x
  2. Step 2: Convert to fraction form
    40,676.72/61,001.01 = 19,326.96/x
  3. Step 3: Cross multiply
    40,676.72x = 61,001.01 × 19,326.96
  4. Step 4: Simplify right side
    40,676.72x = 1,178,964,080.23
  5. Step 5: Solve for x
    x = 1,178,964,080.23/40,676.72
  6. Step 6: Final answer
    x = 28,983.76

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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.