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Finding the Fourth Proportional to 68,854.72, 95,017.24 and 38,640.52

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Solution

The fourth proportional to 68,854.72, 95,017.24 and 38,640.52 is: 53,322.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,854.72 : 95,017.24 = 38,640.52 : x
  2. Step 2: Convert to fraction form
    68,854.72/95,017.24 = 38,640.52/x
  3. Step 3: Cross multiply
    68,854.72x = 95,017.24 × 38,640.52
  4. Step 4: Simplify right side
    68,854.72x = 3,671,515,245.05
  5. Step 5: Solve for x
    x = 3,671,515,245.05/68,854.72
  6. Step 6: Final answer
    x = 53,322.64

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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.