Home / 57,195.70-78,933.18-31,705.07

Finding the Fourth Proportional to 57,195.70, 78,933.18 and 31,705.07

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Solution

The fourth proportional to 57,195.70, 78,933.18 and 31,705.07 is: 43,754.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,195.70 : 78,933.18 = 31,705.07 : x
  2. Step 2: Convert to fraction form
    57,195.70/78,933.18 = 31,705.07/x
  3. Step 3: Cross multiply
    57,195.70x = 78,933.18 × 31,705.07
  4. Step 4: Simplify right side
    57,195.70x = 2,502,581,997.22
  5. Step 5: Solve for x
    x = 2,502,581,997.22/57,195.70
  6. Step 6: Final answer
    x = 43,754.72

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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.