Home / 53,659.20-80,553.60-53,270.40

Finding the Fourth Proportional to 53,659.20, 80,553.60 and 53,270.40

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Solution

The fourth proportional to 53,659.20, 80,553.60 and 53,270.40 is: 79,969.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,659.20 : 80,553.60 = 53,270.40 : x
  2. Step 2: Convert to fraction form
    53,659.20/80,553.60 = 53,270.40/x
  3. Step 3: Cross multiply
    53,659.20x = 80,553.60 × 53,270.40
  4. Step 4: Simplify right side
    53,659.20x = 4,291,122,493.44
  5. Step 5: Solve for x
    x = 4,291,122,493.44/53,659.20
  6. Step 6: Final answer
    x = 79,969.93

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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.