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Finding the Fourth Proportional to 68,749.02, 94,873.41 and 38,534.40

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Solution

The fourth proportional to 68,749.02, 94,873.41 and 38,534.40 is: 53,177.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,749.02 : 94,873.41 = 38,534.40 : x
  2. Step 2: Convert to fraction form
    68,749.02/94,873.41 = 38,534.40/x
  3. Step 3: Cross multiply
    68,749.02x = 94,873.41 × 38,534.40
  4. Step 4: Simplify right side
    68,749.02x = 3,655,889,930.30
  5. Step 5: Solve for x
    x = 3,655,889,930.30/68,749.02
  6. Step 6: Final answer
    x = 53,177.34

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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.