Home / 57,106.74-78,806.32-31,612.56

Finding the Fourth Proportional to 57,106.74, 78,806.32 and 31,612.56

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Solution

The fourth proportional to 57,106.74, 78,806.32 and 31,612.56 is: 43,624.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,106.74 : 78,806.32 = 31,612.56 : x
  2. Step 2: Convert to fraction form
    57,106.74/78,806.32 = 31,612.56/x
  3. Step 3: Cross multiply
    57,106.74x = 78,806.32 × 31,612.56
  4. Step 4: Simplify right side
    57,106.74x = 2,491,269,519.38
  5. Step 5: Solve for x
    x = 2,491,269,519.38/57,106.74
  6. Step 6: Final answer
    x = 43,624.79

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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.