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Finding the Fourth Proportional to 85,043.52, 117,352.48 and 47,318.72

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Solution

The fourth proportional to 85,043.52, 117,352.48 and 47,318.72 is: 65,295.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,043.52 : 117,352.48 = 47,318.72 : x
  2. Step 2: Convert to fraction form
    85,043.52/117,352.48 = 47,318.72/x
  3. Step 3: Cross multiply
    85,043.52x = 117,352.48 × 47,318.72
  4. Step 4: Simplify right side
    85,043.52x = 5,552,969,142.43
  5. Step 5: Solve for x
    x = 5,552,969,142.43/85,043.52
  6. Step 6: Final answer
    x = 65,295.62

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1.5x scale

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.