Home / 87,463.67-120,678.44-49,215.75

Finding the Fourth Proportional to 87,463.67, 120,678.44 and 49,215.75

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Solution

The fourth proportional to 87,463.67, 120,678.44 and 49,215.75 is: 67,905.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,463.67 : 120,678.44 = 49,215.75 : x
  2. Step 2: Convert to fraction form
    87,463.67/120,678.44 = 49,215.75/x
  3. Step 3: Cross multiply
    87,463.67x = 120,678.44 × 49,215.75
  4. Step 4: Simplify right side
    87,463.67x = 5,939,279,687.35
  5. Step 5: Solve for x
    x = 5,939,279,687.35/87,463.67
  6. Step 6: Final answer
    x = 67,905.68

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1.5x scale

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.