Home / 87,127.92-130,703.99-27,981.72

Finding the Fourth Proportional to 87,127.92, 130,703.99 and 27,981.72

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Solution

The fourth proportional to 87,127.92, 130,703.99 and 27,981.72 is: 41,976.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,127.92 : 130,703.99 = 27,981.72 : x
  2. Step 2: Convert to fraction form
    87,127.92/130,703.99 = 27,981.72/x
  3. Step 3: Cross multiply
    87,127.92x = 130,703.99 × 27,981.72
  4. Step 4: Simplify right side
    87,127.92x = 3,657,322,311.15
  5. Step 5: Solve for x
    x = 3,657,322,311.15/87,127.92
  6. Step 6: Final answer
    x = 41,976.47

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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.