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Finding the Fourth Proportional to 80,802.27, 121,201.11 and 21,637.98

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Solution

The fourth proportional to 80,802.27, 121,201.11 and 21,637.98 is: 32,456.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,802.27 : 121,201.11 = 21,637.98 : x
  2. Step 2: Convert to fraction form
    80,802.27/121,201.11 = 21,637.98/x
  3. Step 3: Cross multiply
    80,802.27x = 121,201.11 × 21,637.98
  4. Step 4: Simplify right side
    80,802.27x = 2,622,547,194.16
  5. Step 5: Solve for x
    x = 2,622,547,194.16/80,802.27
  6. Step 6: Final answer
    x = 32,456.36

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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.