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Finding the Fourth Proportional to 53,400.60, 80,100.90 and 13,961.70

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Solution

The fourth proportional to 53,400.60, 80,100.90 and 13,961.70 is: 20,942.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,400.60 : 80,100.90 = 13,961.70 : x
  2. Step 2: Convert to fraction form
    53,400.60/80,100.90 = 13,961.70/x
  3. Step 3: Cross multiply
    53,400.60x = 80,100.90 × 13,961.70
  4. Step 4: Simplify right side
    53,400.60x = 1,118,344,735.53
  5. Step 5: Solve for x
    x = 1,118,344,735.53/53,400.60
  6. Step 6: Final answer
    x = 20,942.55

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.