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Finding the Fourth Proportional to 85,239.92, 117,582.92 and 53,353.46

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Solution

The fourth proportional to 85,239.92, 117,582.92 and 53,353.46 is: 73,597.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,239.92 : 117,582.92 = 53,353.46 : x
  2. Step 2: Convert to fraction form
    85,239.92/117,582.92 = 53,353.46/x
  3. Step 3: Cross multiply
    85,239.92x = 117,582.92 × 53,353.46
  4. Step 4: Simplify right side
    85,239.92x = 6,273,455,618.90
  5. Step 5: Solve for x
    x = 6,273,455,618.90/85,239.92
  6. Step 6: Final answer
    x = 73,597.62

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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.