Home / 87,119.75-120,180.98-56,922.75

Finding the Fourth Proportional to 87,119.75, 120,180.98 and 56,922.75

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Solution

The fourth proportional to 87,119.75, 120,180.98 and 56,922.75 is: 78,524.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,119.75 : 120,180.98 = 56,922.75 : x
  2. Step 2: Convert to fraction form
    87,119.75/120,180.98 = 56,922.75/x
  3. Step 3: Cross multiply
    87,119.75x = 120,180.98 × 56,922.75
  4. Step 4: Simplify right side
    87,119.75x = 6,841,032,021.60
  5. Step 5: Solve for x
    x = 6,841,032,021.60/87,119.75
  6. Step 6: Final answer
    x = 78,524.47

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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.