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Finding the Fourth Proportional to 53,402.60, 80,103.90 and 13,963.70

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Solution

The fourth proportional to 53,402.60, 80,103.90 and 13,963.70 is: 20,945.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,402.60 : 80,103.90 = 13,963.70 : x
  2. Step 2: Convert to fraction form
    53,402.60/80,103.90 = 13,963.70/x
  3. Step 3: Cross multiply
    53,402.60x = 80,103.90 × 13,963.70
  4. Step 4: Simplify right side
    53,402.60x = 1,118,546,828.43
  5. Step 5: Solve for x
    x = 1,118,546,828.43/53,402.60
  6. Step 6: Final answer
    x = 20,945.55

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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.