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Finding the Fourth Proportional to 85,367.40, 117,813.54 and 47,134.32

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Solution

The fourth proportional to 85,367.40, 117,813.54 and 47,134.32 is: 65,048.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,367.40 : 117,813.54 = 47,134.32 : x
  2. Step 2: Convert to fraction form
    85,367.40/117,813.54 = 47,134.32/x
  3. Step 3: Cross multiply
    85,367.40x = 117,813.54 × 47,134.32
  4. Step 4: Simplify right side
    85,367.40x = 5,553,061,094.69
  5. Step 5: Solve for x
    x = 5,553,061,094.69/85,367.40
  6. Step 6: Final answer
    x = 65,048.97

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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.