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Finding the Fourth Proportional to 85,239.88, 117,631.58 and 47,516.52

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Solution

The fourth proportional to 85,239.88, 117,631.58 and 47,516.52 is: 65,573.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,239.88 : 117,631.58 = 47,516.52 : x
  2. Step 2: Convert to fraction form
    85,239.88/117,631.58 = 47,516.52/x
  3. Step 3: Cross multiply
    85,239.88x = 117,631.58 × 47,516.52
  4. Step 4: Simplify right side
    85,239.88x = 5,589,443,323.70
  5. Step 5: Solve for x
    x = 5,589,443,323.70/85,239.88
  6. Step 6: Final answer
    x = 65,573.10

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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.