Home / 57,240.20-86,090.70-51,249.80

Finding the Fourth Proportional to 57,240.20, 86,090.70 and 51,249.80

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Solution

The fourth proportional to 57,240.20, 86,090.70 and 51,249.80 is: 77,080.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,240.20 : 86,090.70 = 51,249.80 : x
  2. Step 2: Convert to fraction form
    57,240.20/86,090.70 = 51,249.80/x
  3. Step 3: Cross multiply
    57,240.20x = 86,090.70 × 51,249.80
  4. Step 4: Simplify right side
    57,240.20x = 4,412,131,156.86
  5. Step 5: Solve for x
    x = 4,412,131,156.86/57,240.20
  6. Step 6: Final answer
    x = 77,080.99

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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.