Home / 72,030.44-99,390.82-40,198.12

Finding the Fourth Proportional to 72,030.44, 99,390.82 and 40,198.12

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Solution

The fourth proportional to 72,030.44, 99,390.82 and 40,198.12 is: 55,467.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,030.44 : 99,390.82 = 40,198.12 : x
  2. Step 2: Convert to fraction form
    72,030.44/99,390.82 = 40,198.12/x
  3. Step 3: Cross multiply
    72,030.44x = 99,390.82 × 40,198.12
  4. Step 4: Simplify right side
    72,030.44x = 3,995,324,109.26
  5. Step 5: Solve for x
    x = 3,995,324,109.26/72,030.44
  6. Step 6: Final answer
    x = 55,467.16

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.