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Finding the Fourth Proportional to 68,334.66, 102,506.85 and 21,587.13

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Solution

The fourth proportional to 68,334.66, 102,506.85 and 21,587.13 is: 32,382.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,334.66 : 102,506.85 = 21,587.13 : x
  2. Step 2: Convert to fraction form
    68,334.66/102,506.85 = 21,587.13/x
  3. Step 3: Cross multiply
    68,334.66x = 102,506.85 × 21,587.13
  4. Step 4: Simplify right side
    68,334.66x = 2,212,828,696.84
  5. Step 5: Solve for x
    x = 2,212,828,696.84/68,334.66
  6. Step 6: Final answer
    x = 32,382.23

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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.