Home / 57,193.70-78,930.42-31,703.07

Finding the Fourth Proportional to 57,193.70, 78,930.42 and 31,703.07

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Solution

The fourth proportional to 57,193.70, 78,930.42 and 31,703.07 is: 43,751.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,193.70 : 78,930.42 = 31,703.07 : x
  2. Step 2: Convert to fraction form
    57,193.70/78,930.42 = 31,703.07/x
  3. Step 3: Cross multiply
    57,193.70x = 78,930.42 × 31,703.07
  4. Step 4: Simplify right side
    57,193.70x = 2,502,336,852.99
  5. Step 5: Solve for x
    x = 2,502,336,852.99/57,193.70
  6. Step 6: Final answer
    x = 43,751.97

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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.