Home / 87,297.65-131,112.52-54,248.64

Finding the Fourth Proportional to 87,297.65, 131,112.52 and 54,248.64

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Solution

The fourth proportional to 87,297.65, 131,112.52 and 54,248.64 is: 81,476.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,297.65 : 131,112.52 = 54,248.64 : x
  2. Step 2: Convert to fraction form
    87,297.65/131,112.52 = 54,248.64/x
  3. Step 3: Cross multiply
    87,297.65x = 131,112.52 × 54,248.64
  4. Step 4: Simplify right side
    87,297.65x = 7,112,675,574.83
  5. Step 5: Solve for x
    x = 7,112,675,574.83/87,297.65
  6. Step 6: Final answer
    x = 81,476.14

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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.