Home / 53,245.20-79,770.60-43,330.80

Finding the Fourth Proportional to 53,245.20, 79,770.60 and 43,330.80

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Solution

The fourth proportional to 53,245.20, 79,770.60 and 43,330.80 is: 64,917.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,245.20 : 79,770.60 = 43,330.80 : x
  2. Step 2: Convert to fraction form
    53,245.20/79,770.60 = 43,330.80/x
  3. Step 3: Cross multiply
    53,245.20x = 79,770.60 × 43,330.80
  4. Step 4: Simplify right side
    53,245.20x = 3,456,523,914.48
  5. Step 5: Solve for x
    x = 3,456,523,914.48/53,245.20
  6. Step 6: Final answer
    x = 64,917.10

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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.