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Finding the Fourth Proportional to 80,804, 111,510 and 45,476

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Solution

The fourth proportional to 80,804, 111,510 and 45,476 is: 62,757.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,804 : 111,510 = 45,476 : x
  2. Step 2: Convert to fraction form
    80,804/111,510 = 45,476/x
  3. Step 3: Cross multiply
    80,804x = 111,510 × 45,476
  4. Step 4: Simplify right side
    80,804x = 5,071,028,760
  5. Step 5: Solve for x
    x = 5,071,028,760/80,804
  6. Step 6: Final answer
    x = 62,757.15

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.