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Finding the Fourth Proportional to 69,086.60, 103,629.90 and 52,497.80

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Solution

The fourth proportional to 69,086.60, 103,629.90 and 52,497.80 is: 78,746.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,086.60 : 103,629.90 = 52,497.80 : x
  2. Step 2: Convert to fraction form
    69,086.60/103,629.90 = 52,497.80/x
  3. Step 3: Cross multiply
    69,086.60x = 103,629.90 × 52,497.80
  4. Step 4: Simplify right side
    69,086.60x = 5,440,341,764.22
  5. Step 5: Solve for x
    x = 5,440,341,764.22/69,086.60
  6. Step 6: Final answer
    x = 78,746.70

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.