Home / 72,187.26-108,208.19-30,090.65

Finding the Fourth Proportional to 72,187.26, 108,208.19 and 30,090.65

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Solution

The fourth proportional to 72,187.26, 108,208.19 and 30,090.65 is: 45,105.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,187.26 : 108,208.19 = 30,090.65 : x
  2. Step 2: Convert to fraction form
    72,187.26/108,208.19 = 30,090.65/x
  3. Step 3: Cross multiply
    72,187.26x = 108,208.19 × 30,090.65
  4. Step 4: Simplify right side
    72,187.26x = 3,256,054,080.93
  5. Step 5: Solve for x
    x = 3,256,054,080.93/72,187.26
  6. Step 6: Final answer
    x = 45,105.66

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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.