Home / 57,181.63-78,910.01-31,340.38

Finding the Fourth Proportional to 57,181.63, 78,910.01 and 31,340.38

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Solution

The fourth proportional to 57,181.63, 78,910.01 and 31,340.38 is: 43,249.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,181.63 : 78,910.01 = 31,340.38 : x
  2. Step 2: Convert to fraction form
    57,181.63/78,910.01 = 31,340.38/x
  3. Step 3: Cross multiply
    57,181.63x = 78,910.01 × 31,340.38
  4. Step 4: Simplify right side
    57,181.63x = 2,473,070,122.79
  5. Step 5: Solve for x
    x = 2,473,070,122.79/57,181.63
  6. Step 6: Final answer
    x = 43,249.38

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1.5x scale

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.