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Finding the Fourth Proportional to 68,186.71, 94,097.64 and 39,897.88

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Solution

The fourth proportional to 68,186.71, 94,097.64 and 39,897.88 is: 55,059.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,186.71 : 94,097.64 = 39,897.88 : x
  2. Step 2: Convert to fraction form
    68,186.71/94,097.64 = 39,897.88/x
  3. Step 3: Cross multiply
    68,186.71x = 94,097.64 × 39,897.88
  4. Step 4: Simplify right side
    68,186.71x = 3,754,296,349.00
  5. Step 5: Solve for x
    x = 3,754,296,349.00/68,186.71
  6. Step 6: Final answer
    x = 55,059.06

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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.