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Finding the Fourth Proportional to 53,646.60, 80,469.90 and 14,207.70

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Solution

The fourth proportional to 53,646.60, 80,469.90 and 14,207.70 is: 21,311.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,646.60 : 80,469.90 = 14,207.70 : x
  2. Step 2: Convert to fraction form
    53,646.60/80,469.90 = 14,207.70/x
  3. Step 3: Cross multiply
    53,646.60x = 80,469.90 × 14,207.70
  4. Step 4: Simplify right side
    53,646.60x = 1,143,292,198.23
  5. Step 5: Solve for x
    x = 1,143,292,198.23/53,646.60
  6. Step 6: Final answer
    x = 21,311.55

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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.