Home / 51,216.77-76,836.44-15,678.36

Finding the Fourth Proportional to 51,216.77, 76,836.44 and 15,678.36

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Solution

The fourth proportional to 51,216.77, 76,836.44 and 15,678.36 is: 23,520.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,216.77 : 76,836.44 = 15,678.36 : x
  2. Step 2: Convert to fraction form
    51,216.77/76,836.44 = 15,678.36/x
  3. Step 3: Cross multiply
    51,216.77x = 76,836.44 × 15,678.36
  4. Step 4: Simplify right side
    51,216.77x = 1,204,669,406.63
  5. Step 5: Solve for x
    x = 1,204,669,406.63/51,216.77
  6. Step 6: Final answer
    x = 23,520.99

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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.