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Finding the Fourth Proportional to 53,499.60, 80,335.80 and 40,366.80

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Solution

The fourth proportional to 53,499.60, 80,335.80 and 40,366.80 is: 60,615.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,499.60 : 80,335.80 = 40,366.80 : x
  2. Step 2: Convert to fraction form
    53,499.60/80,335.80 = 40,366.80/x
  3. Step 3: Cross multiply
    53,499.60x = 80,335.80 × 40,366.80
  4. Step 4: Simplify right side
    53,499.60x = 3,242,899,171.44
  5. Step 5: Solve for x
    x = 3,242,899,171.44/53,499.60
  6. Step 6: Final answer
    x = 60,615.39

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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.