Home / 57,107.93-78,807.78-31,614.29

Finding the Fourth Proportional to 57,107.93, 78,807.78 and 31,614.29

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Solution

The fourth proportional to 57,107.93, 78,807.78 and 31,614.29 is: 43,627.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,107.93 : 78,807.78 = 31,614.29 : x
  2. Step 2: Convert to fraction form
    57,107.93/78,807.78 = 31,614.29/x
  3. Step 3: Cross multiply
    57,107.93x = 78,807.78 × 31,614.29
  4. Step 4: Simplify right side
    57,107.93x = 2,491,451,617.14
  5. Step 5: Solve for x
    x = 2,491,451,617.14/57,107.93
  6. Step 6: Final answer
    x = 43,627.07

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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.