Home / 57,238.42-78,997.09-31,750.45

Finding the Fourth Proportional to 57,238.42, 78,997.09 and 31,750.45

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Solution

The fourth proportional to 57,238.42, 78,997.09 and 31,750.45 is: 43,820.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,238.42 : 78,997.09 = 31,750.45 : x
  2. Step 2: Convert to fraction form
    57,238.42/78,997.09 = 31,750.45/x
  3. Step 3: Cross multiply
    57,238.42x = 78,997.09 × 31,750.45
  4. Step 4: Simplify right side
    57,238.42x = 2,508,192,997.44
  5. Step 5: Solve for x
    x = 2,508,192,997.44/57,238.42
  6. Step 6: Final answer
    x = 43,820.09

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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.