Home / 87,457.05-131,185.13-75,574.72

Finding the Fourth Proportional to 87,457.05, 131,185.13 and 75,574.72

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Solution

The fourth proportional to 87,457.05, 131,185.13 and 75,574.72 is: 113,361.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,457.05 : 131,185.13 = 75,574.72 : x
  2. Step 2: Convert to fraction form
    87,457.05/131,185.13 = 75,574.72/x
  3. Step 3: Cross multiply
    87,457.05x = 131,185.13 × 75,574.72
  4. Step 4: Simplify right side
    87,457.05x = 9,914,279,467.91
  5. Step 5: Solve for x
    x = 9,914,279,467.91/87,457.05
  6. Step 6: Final answer
    x = 113,361.70

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.