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Finding the Fourth Proportional to 85,318.98, 117,743.40 and 47,600.52

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Solution

The fourth proportional to 85,318.98, 117,743.40 and 47,600.52 is: 65,690.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,318.98 : 117,743.40 = 47,600.52 : x
  2. Step 2: Convert to fraction form
    85,318.98/117,743.40 = 47,600.52/x
  3. Step 3: Cross multiply
    85,318.98x = 117,743.40 × 47,600.52
  4. Step 4: Simplify right side
    85,318.98x = 5,604,647,066.57
  5. Step 5: Solve for x
    x = 5,604,647,066.57/85,318.98
  6. Step 6: Final answer
    x = 65,690.51

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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.