Home / 57,105.87-78,804.97-31,612.26

Finding the Fourth Proportional to 57,105.87, 78,804.97 and 31,612.26

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Solution

The fourth proportional to 57,105.87, 78,804.97 and 31,612.26 is: 43,624.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,105.87 : 78,804.97 = 31,612.26 : x
  2. Step 2: Convert to fraction form
    57,105.87/78,804.97 = 31,612.26/x
  3. Step 3: Cross multiply
    57,105.87x = 78,804.97 × 31,612.26
  4. Step 4: Simplify right side
    57,105.87x = 2,491,203,417.42
  5. Step 5: Solve for x
    x = 2,491,203,417.42/57,105.87
  6. Step 6: Final answer
    x = 43,624.30

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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.