Home / 87,199.43-130,811.45-28,015.26

Finding the Fourth Proportional to 87,199.43, 130,811.45 and 28,015.26

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Solution

The fourth proportional to 87,199.43, 130,811.45 and 28,015.26 is: 42,026.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,199.43 : 130,811.45 = 28,015.26 : x
  2. Step 2: Convert to fraction form
    87,199.43/130,811.45 = 28,015.26/x
  3. Step 3: Cross multiply
    87,199.43x = 130,811.45 × 28,015.26
  4. Step 4: Simplify right side
    87,199.43x = 3,664,716,782.73
  5. Step 5: Solve for x
    x = 3,664,716,782.73/87,199.43
  6. Step 6: Final answer
    x = 42,026.84

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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.