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Finding the Fourth Proportional to 68,116, 94,005.84 and 38,313.76

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Solution

The fourth proportional to 68,116, 94,005.84 and 38,313.76 is: 52,876.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,116 : 94,005.84 = 38,313.76 : x
  2. Step 2: Convert to fraction form
    68,116/94,005.84 = 38,313.76/x
  3. Step 3: Cross multiply
    68,116x = 94,005.84 × 38,313.76
  4. Step 4: Simplify right side
    68,116x = 3,601,717,192.36
  5. Step 5: Solve for x
    x = 3,601,717,192.36/68,116
  6. Step 6: Final answer
    x = 52,876.23

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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.