Home / 57,018.43-78,682.25-31,523.31

Finding the Fourth Proportional to 57,018.43, 78,682.25 and 31,523.31

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Solution

The fourth proportional to 57,018.43, 78,682.25 and 31,523.31 is: 43,500.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,018.43 : 78,682.25 = 31,523.31 : x
  2. Step 2: Convert to fraction form
    57,018.43/78,682.25 = 31,523.31/x
  3. Step 3: Cross multiply
    57,018.43x = 78,682.25 × 31,523.31
  4. Step 4: Simplify right side
    57,018.43x = 2,480,324,840.35
  5. Step 5: Solve for x
    x = 2,480,324,840.35/57,018.43
  6. Step 6: Final answer
    x = 43,500.41

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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.