Home / 57,053.88-78,734.30-31,903.38

Finding the Fourth Proportional to 57,053.88, 78,734.30 and 31,903.38

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Solution

The fourth proportional to 57,053.88, 78,734.30 and 31,903.38 is: 44,026.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,053.88 : 78,734.30 = 31,903.38 : x
  2. Step 2: Convert to fraction form
    57,053.88/78,734.30 = 31,903.38/x
  3. Step 3: Cross multiply
    57,053.88x = 78,734.30 × 31,903.38
  4. Step 4: Simplify right side
    57,053.88x = 2,511,890,132.42
  5. Step 5: Solve for x
    x = 2,511,890,132.42/57,053.88
  6. Step 6: Final answer
    x = 44,026.63

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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.