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Finding the Fourth Proportional to 85,520.62, 118,019.19 and 47,797.30

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Solution

The fourth proportional to 85,520.62, 118,019.19 and 47,797.30 is: 65,960.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,520.62 : 118,019.19 = 47,797.30 : x
  2. Step 2: Convert to fraction form
    85,520.62/118,019.19 = 47,797.30/x
  3. Step 3: Cross multiply
    85,520.62x = 118,019.19 × 47,797.30
  4. Step 4: Simplify right side
    85,520.62x = 5,640,998,630.19
  5. Step 5: Solve for x
    x = 5,640,998,630.19/85,520.62
  6. Step 6: Final answer
    x = 65,960.68

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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.