Home / 53,917.60-80,825.20-42,064.80

Finding the Fourth Proportional to 53,917.60, 80,825.20 and 42,064.80

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Solution

The fourth proportional to 53,917.60, 80,825.20 and 42,064.80 is: 63,057.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,917.60 : 80,825.20 = 42,064.80 : x
  2. Step 2: Convert to fraction form
    53,917.60/80,825.20 = 42,064.80/x
  3. Step 3: Cross multiply
    53,917.60x = 80,825.20 × 42,064.80
  4. Step 4: Simplify right side
    53,917.60x = 3,399,895,872.96
  5. Step 5: Solve for x
    x = 3,399,895,872.96/53,917.60
  6. Step 6: Final answer
    x = 63,057.26

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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.