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Finding the Fourth Proportional to 65,183.73, 90,005.86 and 52,395.93

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Solution

The fourth proportional to 65,183.73, 90,005.86 and 52,395.93 is: 72,348.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,183.73 : 90,005.86 = 52,395.93 : x
  2. Step 2: Convert to fraction form
    65,183.73/90,005.86 = 52,395.93/x
  3. Step 3: Cross multiply
    65,183.73x = 90,005.86 × 52,395.93
  4. Step 4: Simplify right side
    65,183.73x = 4,715,940,740.15
  5. Step 5: Solve for x
    x = 4,715,940,740.15/65,183.73
  6. Step 6: Final answer
    x = 72,348.43

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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.