Home / 73,189.38-109,774.35-20,603.37

Finding the Fourth Proportional to 73,189.38, 109,774.35 and 20,603.37

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Solution

The fourth proportional to 73,189.38, 109,774.35 and 20,603.37 is: 30,902.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,189.38 : 109,774.35 = 20,603.37 : x
  2. Step 2: Convert to fraction form
    73,189.38/109,774.35 = 20,603.37/x
  3. Step 3: Cross multiply
    73,189.38x = 109,774.35 × 20,603.37
  4. Step 4: Simplify right side
    73,189.38x = 2,261,721,549.56
  5. Step 5: Solve for x
    x = 2,261,721,549.56/73,189.38
  6. Step 6: Final answer
    x = 30,902.32

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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.