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Finding the Fourth Proportional to 68,110.60, 93,990.72 and 37,894.36

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Solution

The fourth proportional to 68,110.60, 93,990.72 and 37,894.36 is: 52,293.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,110.60 : 93,990.72 = 37,894.36 : x
  2. Step 2: Convert to fraction form
    68,110.60/93,990.72 = 37,894.36/x
  3. Step 3: Cross multiply
    68,110.60x = 93,990.72 × 37,894.36
  4. Step 4: Simplify right side
    68,110.60x = 3,561,718,180.34
  5. Step 5: Solve for x
    x = 3,561,718,180.34/68,110.60
  6. Step 6: Final answer
    x = 52,293.16

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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.