Home / 85,137.24-117,433.12-53,250.80

Finding the Fourth Proportional to 85,137.24, 117,433.12 and 53,250.80

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Solution

The fourth proportional to 85,137.24, 117,433.12 and 53,250.80 is: 73,450.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,137.24 : 117,433.12 = 53,250.80 : x
  2. Step 2: Convert to fraction form
    85,137.24/117,433.12 = 53,250.80/x
  3. Step 3: Cross multiply
    85,137.24x = 117,433.12 × 53,250.80
  4. Step 4: Simplify right side
    85,137.24x = 6,253,407,586.50
  5. Step 5: Solve for x
    x = 6,253,407,586.50/85,137.24
  6. Step 6: Final answer
    x = 73,450.91

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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.