Home / 72,606.38-100,185.05-45,379.25

Finding the Fourth Proportional to 72,606.38, 100,185.05 and 45,379.25

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Solution

The fourth proportional to 72,606.38, 100,185.05 and 45,379.25 is: 62,616.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,606.38 : 100,185.05 = 45,379.25 : x
  2. Step 2: Convert to fraction form
    72,606.38/100,185.05 = 45,379.25/x
  3. Step 3: Cross multiply
    72,606.38x = 100,185.05 × 45,379.25
  4. Step 4: Simplify right side
    72,606.38x = 4,546,322,794.12
  5. Step 5: Solve for x
    x = 4,546,322,794.12/72,606.38
  6. Step 6: Final answer
    x = 62,616.03

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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.