Home / 87,120.36-130,738.80-37,212.12

Finding the Fourth Proportional to 87,120.36, 130,738.80 and 37,212.12

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Solution

The fourth proportional to 87,120.36, 130,738.80 and 37,212.12 is: 55,843.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,120.36 : 130,738.80 = 37,212.12 : x
  2. Step 2: Convert to fraction form
    87,120.36/130,738.80 = 37,212.12/x
  3. Step 3: Cross multiply
    87,120.36x = 130,738.80 × 37,212.12
  4. Step 4: Simplify right side
    87,120.36x = 4,865,067,914.26
  5. Step 5: Solve for x
    x = 4,865,067,914.26/87,120.36
  6. Step 6: Final answer
    x = 55,843.06

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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.