Home / 87,450.41-120,681.01-49,724.66

Finding the Fourth Proportional to 87,450.41, 120,681.01 and 49,724.66

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Solution

The fourth proportional to 87,450.41, 120,681.01 and 49,724.66 is: 68,619.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,450.41 : 120,681.01 = 49,724.66 : x
  2. Step 2: Convert to fraction form
    87,450.41/120,681.01 = 49,724.66/x
  3. Step 3: Cross multiply
    87,450.41x = 120,681.01 × 49,724.66
  4. Step 4: Simplify right side
    87,450.41x = 6,000,822,190.71
  5. Step 5: Solve for x
    x = 6,000,822,190.71/87,450.41
  6. Step 6: Final answer
    x = 68,619.71

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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.