Home / 45,085.52-67,620.36-13,921.04

Finding the Fourth Proportional to 45,085.52, 67,620.36 and 13,921.04

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Solution

The fourth proportional to 45,085.52, 67,620.36 and 13,921.04 is: 20,879.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,085.52 : 67,620.36 = 13,921.04 : x
  2. Step 2: Convert to fraction form
    45,085.52/67,620.36 = 13,921.04/x
  3. Step 3: Cross multiply
    45,085.52x = 67,620.36 × 13,921.04
  4. Step 4: Simplify right side
    45,085.52x = 941,345,736.37
  5. Step 5: Solve for x
    x = 941,345,736.37/45,085.52
  6. Step 6: Final answer
    x = 20,879.11

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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.