Home / 57,187.92-78,922.47-31,693.75

Finding the Fourth Proportional to 57,187.92, 78,922.47 and 31,693.75

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Solution

The fourth proportional to 57,187.92, 78,922.47 and 31,693.75 is: 43,739.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,187.92 : 78,922.47 = 31,693.75 : x
  2. Step 2: Convert to fraction form
    57,187.92/78,922.47 = 31,693.75/x
  3. Step 3: Cross multiply
    57,187.92x = 78,922.47 × 31,693.75
  4. Step 4: Simplify right side
    57,187.92x = 2,501,349,033.56
  5. Step 5: Solve for x
    x = 2,501,349,033.56/57,187.92
  6. Step 6: Final answer
    x = 43,739.12

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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.