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Finding the Fourth Proportional to 85,889.47, 118,523.28 and 47,650.54

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Solution

The fourth proportional to 85,889.47, 118,523.28 and 47,650.54 is: 65,755.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,889.47 : 118,523.28 = 47,650.54 : x
  2. Step 2: Convert to fraction form
    85,889.47/118,523.28 = 47,650.54/x
  3. Step 3: Cross multiply
    85,889.47x = 118,523.28 × 47,650.54
  4. Step 4: Simplify right side
    85,889.47x = 5,647,698,294.57
  5. Step 5: Solve for x
    x = 5,647,698,294.57/85,889.47
  6. Step 6: Final answer
    x = 65,755.42

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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.