Home / 87,639.42-131,476.81-27,677.27

Finding the Fourth Proportional to 87,639.42, 131,476.81 and 27,677.27

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Solution

The fourth proportional to 87,639.42, 131,476.81 and 27,677.27 is: 41,521.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,639.42 : 131,476.81 = 27,677.27 : x
  2. Step 2: Convert to fraction form
    87,639.42/131,476.81 = 27,677.27/x
  3. Step 3: Cross multiply
    87,639.42x = 131,476.81 × 27,677.27
  4. Step 4: Simplify right side
    87,639.42x = 3,638,918,511.72
  5. Step 5: Solve for x
    x = 3,638,918,511.72/87,639.42
  6. Step 6: Final answer
    x = 41,521.48

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1.5x scale

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.