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Finding the Fourth Proportional to 85,137.48, 117,531.81 and 53,323.92

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Solution

The fourth proportional to 85,137.48, 117,531.81 and 53,323.92 is: 73,613.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,137.48 : 117,531.81 = 53,323.92 : x
  2. Step 2: Convert to fraction form
    85,137.48/117,531.81 = 53,323.92/x
  3. Step 3: Cross multiply
    85,137.48x = 117,531.81 × 53,323.92
  4. Step 4: Simplify right side
    85,137.48x = 6,267,256,833.90
  5. Step 5: Solve for x
    x = 6,267,256,833.90/85,137.48
  6. Step 6: Final answer
    x = 73,613.37

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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.