Home / 51,303.36-76,998.24-20,160.48

Finding the Fourth Proportional to 51,303.36, 76,998.24 and 20,160.48

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Solution

The fourth proportional to 51,303.36, 76,998.24 and 20,160.48 is: 30,257.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,303.36 : 76,998.24 = 20,160.48 : x
  2. Step 2: Convert to fraction form
    51,303.36/76,998.24 = 20,160.48/x
  3. Step 3: Cross multiply
    51,303.36x = 76,998.24 × 20,160.48
  4. Step 4: Simplify right side
    51,303.36x = 1,552,321,477.56
  5. Step 5: Solve for x
    x = 1,552,321,477.56/51,303.36
  6. Step 6: Final answer
    x = 30,257.70

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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.