Home / 45,048.50-67,572.78-12,216.50

Finding the Fourth Proportional to 45,048.50, 67,572.78 and 12,216.50

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Solution

The fourth proportional to 45,048.50, 67,572.78 and 12,216.50 is: 18,324.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,048.50 : 67,572.78 = 12,216.50 : x
  2. Step 2: Convert to fraction form
    45,048.50/67,572.78 = 12,216.50/x
  3. Step 3: Cross multiply
    45,048.50x = 67,572.78 × 12,216.50
  4. Step 4: Simplify right side
    45,048.50x = 825,502,866.87
  5. Step 5: Solve for x
    x = 825,502,866.87/45,048.50
  6. Step 6: Final answer
    x = 18,324.76

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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.