Home / 45,105.48-67,640.22-13,932.36

Finding the Fourth Proportional to 45,105.48, 67,640.22 and 13,932.36

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Solution

The fourth proportional to 45,105.48, 67,640.22 and 13,932.36 is: 20,892.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,105.48 : 67,640.22 = 13,932.36 : x
  2. Step 2: Convert to fraction form
    45,105.48/67,640.22 = 13,932.36/x
  3. Step 3: Cross multiply
    45,105.48x = 67,640.22 × 13,932.36
  4. Step 4: Simplify right side
    45,105.48x = 942,387,895.52
  5. Step 5: Solve for x
    x = 942,387,895.52/45,105.48
  6. Step 6: Final answer
    x = 20,892.98

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1.5x scale

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.