Home / 85,524.10-127,940.55-73,965.70

Finding the Fourth Proportional to 85,524.10, 127,940.55 and 73,965.70

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Solution

The fourth proportional to 85,524.10, 127,940.55 and 73,965.70 is: 110,649.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,524.10 : 127,940.55 = 73,965.70 : x
  2. Step 2: Convert to fraction form
    85,524.10/127,940.55 = 73,965.70/x
  3. Step 3: Cross multiply
    85,524.10x = 127,940.55 × 73,965.70
  4. Step 4: Simplify right side
    85,524.10x = 9,463,212,339.14
  5. Step 5: Solve for x
    x = 9,463,212,339.14/85,524.10
  6. Step 6: Final answer
    x = 110,649.66

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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.