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Finding the Fourth Proportional to 85,183.53, 117,490.71 and 54,953.52

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Solution

The fourth proportional to 85,183.53, 117,490.71 and 54,953.52 is: 75,795.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,183.53 : 117,490.71 = 54,953.52 : x
  2. Step 2: Convert to fraction form
    85,183.53/117,490.71 = 54,953.52/x
  3. Step 3: Cross multiply
    85,183.53x = 117,490.71 × 54,953.52
  4. Step 4: Simplify right side
    85,183.53x = 6,456,528,081.80
  5. Step 5: Solve for x
    x = 6,456,528,081.80/85,183.53
  6. Step 6: Final answer
    x = 75,795.50

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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.