Home / 64,789.24-89,356.29-54,400.90

Finding the Fourth Proportional to 64,789.24, 89,356.29 and 54,400.90

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Solution

The fourth proportional to 64,789.24, 89,356.29 and 54,400.90 is: 75,028.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,789.24 : 89,356.29 = 54,400.90 : x
  2. Step 2: Convert to fraction form
    64,789.24/89,356.29 = 54,400.90/x
  3. Step 3: Cross multiply
    64,789.24x = 89,356.29 × 54,400.90
  4. Step 4: Simplify right side
    64,789.24x = 4,861,062,596.66
  5. Step 5: Solve for x
    x = 4,861,062,596.66/64,789.24
  6. Step 6: Final answer
    x = 75,028.86

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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.