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Finding the Fourth Proportional to 68,388.76, 94,365.84 and 38,172.52

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Solution

The fourth proportional to 68,388.76, 94,365.84 and 38,172.52 is: 52,672.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,388.76 : 94,365.84 = 38,172.52 : x
  2. Step 2: Convert to fraction form
    68,388.76/94,365.84 = 38,172.52/x
  3. Step 3: Cross multiply
    68,388.76x = 94,365.84 × 38,172.52
  4. Step 4: Simplify right side
    68,388.76x = 3,602,181,914.72
  5. Step 5: Solve for x
    x = 3,602,181,914.72/68,388.76
  6. Step 6: Final answer
    x = 52,672.13

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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.