Home / 57,122.82-78,858.10-35,913.78

Finding the Fourth Proportional to 57,122.82, 78,858.10 and 35,913.78

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Solution

The fourth proportional to 57,122.82, 78,858.10 and 35,913.78 is: 49,579.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,122.82 : 78,858.10 = 35,913.78 : x
  2. Step 2: Convert to fraction form
    57,122.82/78,858.10 = 35,913.78/x
  3. Step 3: Cross multiply
    57,122.82x = 78,858.10 × 35,913.78
  4. Step 4: Simplify right side
    57,122.82x = 2,832,092,454.62
  5. Step 5: Solve for x
    x = 2,832,092,454.62/57,122.82
  6. Step 6: Final answer
    x = 49,579.00

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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.