Home / 57,509.62-78,939.26-51,081.46

Finding the Fourth Proportional to 57,509.62, 78,939.26 and 51,081.46

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Solution

The fourth proportional to 57,509.62, 78,939.26 and 51,081.46 is: 70,115.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,509.62 : 78,939.26 = 51,081.46 : x
  2. Step 2: Convert to fraction form
    57,509.62/78,939.26 = 51,081.46/x
  3. Step 3: Cross multiply
    57,509.62x = 78,939.26 × 51,081.46
  4. Step 4: Simplify right side
    57,509.62x = 4,032,332,652.12
  5. Step 5: Solve for x
    x = 4,032,332,652.12/57,509.62
  6. Step 6: Final answer
    x = 70,115.79

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Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.