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Finding the Fourth Proportional to 60,801, 91,210.62 and 21,351.18

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Solution

The fourth proportional to 60,801, 91,210.62 and 21,351.18 is: 32,029.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,801 : 91,210.62 = 21,351.18 : x
  2. Step 2: Convert to fraction form
    60,801/91,210.62 = 21,351.18/x
  3. Step 3: Cross multiply
    60,801x = 91,210.62 × 21,351.18
  4. Step 4: Simplify right side
    60,801x = 1,947,454,365.53
  5. Step 5: Solve for x
    x = 1,947,454,365.53/60,801
  6. Step 6: Final answer
    x = 32,029.97

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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.