Home / 87,758.48-120,977.40-62,185.84

Finding the Fourth Proportional to 87,758.48, 120,977.40 and 62,185.84

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Solution

The fourth proportional to 87,758.48, 120,977.40 and 62,185.84 is: 85,724.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,758.48 : 120,977.40 = 62,185.84 : x
  2. Step 2: Convert to fraction form
    87,758.48/120,977.40 = 62,185.84/x
  3. Step 3: Cross multiply
    87,758.48x = 120,977.40 × 62,185.84
  4. Step 4: Simplify right side
    87,758.48x = 7,523,081,240.02
  5. Step 5: Solve for x
    x = 7,523,081,240.02/87,758.48
  6. Step 6: Final answer
    x = 85,724.84

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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.