Home / 72,131.51-108,198.08-22,211.21

Finding the Fourth Proportional to 72,131.51, 108,198.08 and 22,211.21

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Solution

The fourth proportional to 72,131.51, 108,198.08 and 22,211.21 is: 33,317.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,131.51 : 108,198.08 = 22,211.21 : x
  2. Step 2: Convert to fraction form
    72,131.51/108,198.08 = 22,211.21/x
  3. Step 3: Cross multiply
    72,131.51x = 108,198.08 × 22,211.21
  4. Step 4: Simplify right side
    72,131.51x = 2,403,209,624.43
  5. Step 5: Solve for x
    x = 2,403,209,624.43/72,131.51
  6. Step 6: Final answer
    x = 33,317.06

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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.