Home / 53,715.20-80,572.80-52,793.60

Finding the Fourth Proportional to 53,715.20, 80,572.80 and 52,793.60

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Solution

The fourth proportional to 53,715.20, 80,572.80 and 52,793.60 is: 79,190.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,715.20 : 80,572.80 = 52,793.60 : x
  2. Step 2: Convert to fraction form
    53,715.20/80,572.80 = 52,793.60/x
  3. Step 3: Cross multiply
    53,715.20x = 80,572.80 × 52,793.60
  4. Step 4: Simplify right side
    53,715.20x = 4,253,728,174.08
  5. Step 5: Solve for x
    x = 4,253,728,174.08/53,715.20
  6. Step 6: Final answer
    x = 79,190.40

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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.