Home / 87,119.58-120,180.71-56,922.59

Finding the Fourth Proportional to 87,119.58, 120,180.71 and 56,922.59

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Solution

The fourth proportional to 87,119.58, 120,180.71 and 56,922.59 is: 78,524.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,119.58 : 120,180.71 = 56,922.59 : x
  2. Step 2: Convert to fraction form
    87,119.58/120,180.71 = 56,922.59/x
  3. Step 3: Cross multiply
    87,119.58x = 120,180.71 × 56,922.59
  4. Step 4: Simplify right side
    87,119.58x = 6,840,996,395.72
  5. Step 5: Solve for x
    x = 6,840,996,395.72/87,119.58
  6. Step 6: Final answer
    x = 78,524.21

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.