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Finding the Fourth Proportional to 80,671.79, 111,197.70 and 54,822.83

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Solution

The fourth proportional to 80,671.79, 111,197.70 and 54,822.83 is: 75,567.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,671.79 : 111,197.70 = 54,822.83 : x
  2. Step 2: Convert to fraction form
    80,671.79/111,197.70 = 54,822.83/x
  3. Step 3: Cross multiply
    80,671.79x = 111,197.70 × 54,822.83
  4. Step 4: Simplify right side
    80,671.79x = 6,096,172,047.50
  5. Step 5: Solve for x
    x = 6,096,172,047.50/80,671.79
  6. Step 6: Final answer
    x = 75,567.58

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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.