Home / 87,297.66-131,112.57-54,248.69

Finding the Fourth Proportional to 87,297.66, 131,112.57 and 54,248.69

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Solution

The fourth proportional to 87,297.66, 131,112.57 and 54,248.69 is: 81,476.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,297.66 : 131,112.57 = 54,248.69 : x
  2. Step 2: Convert to fraction form
    87,297.66/131,112.57 = 54,248.69/x
  3. Step 3: Cross multiply
    87,297.66x = 131,112.57 × 54,248.69
  4. Step 4: Simplify right side
    87,297.66x = 7,112,684,509.47
  5. Step 5: Solve for x
    x = 7,112,684,509.47/87,297.66
  6. Step 6: Final answer
    x = 81,476.23

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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.