Home / 83,558.72-125,417.67-51,872.90

Finding the Fourth Proportional to 83,558.72, 125,417.67 and 51,872.90

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Solution

The fourth proportional to 83,558.72, 125,417.67 and 51,872.90 is: 77,858.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,558.72 : 125,417.67 = 51,872.90 : x
  2. Step 2: Convert to fraction form
    83,558.72/125,417.67 = 51,872.90/x
  3. Step 3: Cross multiply
    83,558.72x = 125,417.67 × 51,872.90
  4. Step 4: Simplify right side
    83,558.72x = 6,505,777,627.05
  5. Step 5: Solve for x
    x = 6,505,777,627.05/83,558.72
  6. Step 6: Final answer
    x = 77,858.76

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.