Home / 51,288.54-76,932.81-40,965.90

Finding the Fourth Proportional to 51,288.54, 76,932.81 and 40,965.90

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Solution

The fourth proportional to 51,288.54, 76,932.81 and 40,965.90 is: 61,448.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,288.54 : 76,932.81 = 40,965.90 : x
  2. Step 2: Convert to fraction form
    51,288.54/76,932.81 = 40,965.90/x
  3. Step 3: Cross multiply
    51,288.54x = 76,932.81 × 40,965.90
  4. Step 4: Simplify right side
    51,288.54x = 3,151,621,801.18
  5. Step 5: Solve for x
    x = 3,151,621,801.18/51,288.54
  6. Step 6: Final answer
    x = 61,448.85

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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.