Home / 57,236.25-78,990.87-31,750.82

Finding the Fourth Proportional to 57,236.25, 78,990.87 and 31,750.82

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Solution

The fourth proportional to 57,236.25, 78,990.87 and 31,750.82 is: 43,818.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,236.25 : 78,990.87 = 31,750.82 : x
  2. Step 2: Convert to fraction form
    57,236.25/78,990.87 = 31,750.82/x
  3. Step 3: Cross multiply
    57,236.25x = 78,990.87 × 31,750.82
  4. Step 4: Simplify right side
    57,236.25x = 2,508,024,992.66
  5. Step 5: Solve for x
    x = 2,508,024,992.66/57,236.25
  6. Step 6: Final answer
    x = 43,818.82

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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.