Home / 87,022.32-130,531.80-27,858

Finding the Fourth Proportional to 87,022.32, 130,531.80 and 27,858

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Solution

The fourth proportional to 87,022.32, 130,531.80 and 27,858 is: 41,786.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,022.32 : 130,531.80 = 27,858 : x
  2. Step 2: Convert to fraction form
    87,022.32/130,531.80 = 27,858/x
  3. Step 3: Cross multiply
    87,022.32x = 130,531.80 × 27,858
  4. Step 4: Simplify right side
    87,022.32x = 3,636,354,884.40
  5. Step 5: Solve for x
    x = 3,636,354,884.40/87,022.32
  6. Step 6: Final answer
    x = 41,786.46

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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.