Home / 87,028.44-120,121.02-53,475

Finding the Fourth Proportional to 87,028.44, 120,121.02 and 53,475

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Solution

The fourth proportional to 87,028.44, 120,121.02 and 53,475 is: 73,808.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,028.44 : 120,121.02 = 53,475 : x
  2. Step 2: Convert to fraction form
    87,028.44/120,121.02 = 53,475/x
  3. Step 3: Cross multiply
    87,028.44x = 120,121.02 × 53,475
  4. Step 4: Simplify right side
    87,028.44x = 6,423,471,544.50
  5. Step 5: Solve for x
    x = 6,423,471,544.50/87,028.44
  6. Step 6: Final answer
    x = 73,808.88

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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.