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Finding the Fourth Proportional to 85,274.96, 117,661.56 and 47,548.40

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Solution

The fourth proportional to 85,274.96, 117,661.56 and 47,548.40 is: 65,606.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,274.96 : 117,661.56 = 47,548.40 : x
  2. Step 2: Convert to fraction form
    85,274.96/117,661.56 = 47,548.40/x
  3. Step 3: Cross multiply
    85,274.96x = 117,661.56 × 47,548.40
  4. Step 4: Simplify right side
    85,274.96x = 5,594,618,919.50
  5. Step 5: Solve for x
    x = 5,594,618,919.50/85,274.96
  6. Step 6: Final answer
    x = 65,606.82

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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.