Home / 57,640.75-79,544.24-31,144.75

Finding the Fourth Proportional to 57,640.75, 79,544.24 and 31,144.75

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Solution

The fourth proportional to 57,640.75, 79,544.24 and 31,144.75 is: 42,979.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,640.75 : 79,544.24 = 31,144.75 : x
  2. Step 2: Convert to fraction form
    57,640.75/79,544.24 = 31,144.75/x
  3. Step 3: Cross multiply
    57,640.75x = 79,544.24 × 31,144.75
  4. Step 4: Simplify right side
    57,640.75x = 2,477,385,468.74
  5. Step 5: Solve for x
    x = 2,477,385,468.74/57,640.75
  6. Step 6: Final answer
    x = 42,979.76

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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.