Home / 87,563.12-120,832.17-51,756.47

Finding the Fourth Proportional to 87,563.12, 120,832.17 and 51,756.47

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Solution

The fourth proportional to 87,563.12, 120,832.17 and 51,756.47 is: 71,421.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,563.12 : 120,832.17 = 51,756.47 : x
  2. Step 2: Convert to fraction form
    87,563.12/120,832.17 = 51,756.47/x
  3. Step 3: Cross multiply
    87,563.12x = 120,832.17 × 51,756.47
  4. Step 4: Simplify right side
    87,563.12x = 6,253,845,977.48
  5. Step 5: Solve for x
    x = 6,253,845,977.48/87,563.12
  6. Step 6: Final answer
    x = 71,421.01

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.