Home / 85,144.24-117,502.70-47,418.49

Finding the Fourth Proportional to 85,144.24, 117,502.70 and 47,418.49

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Solution

The fourth proportional to 85,144.24, 117,502.70 and 47,418.49 is: 65,439.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,144.24 : 117,502.70 = 47,418.49 : x
  2. Step 2: Convert to fraction form
    85,144.24/117,502.70 = 47,418.49/x
  3. Step 3: Cross multiply
    85,144.24x = 117,502.70 × 47,418.49
  4. Step 4: Simplify right side
    85,144.24x = 5,571,800,367.83
  5. Step 5: Solve for x
    x = 5,571,800,367.83/85,144.24
  6. Step 6: Final answer
    x = 65,439.55

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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.