Home / 72,190.32-108,303.94-27,805.16

Finding the Fourth Proportional to 72,190.32, 108,303.94 and 27,805.16

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Solution

The fourth proportional to 72,190.32, 108,303.94 and 27,805.16 is: 41,714.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,190.32 : 108,303.94 = 27,805.16 : x
  2. Step 2: Convert to fraction form
    72,190.32/108,303.94 = 27,805.16/x
  3. Step 3: Cross multiply
    72,190.32x = 108,303.94 × 27,805.16
  4. Step 4: Simplify right side
    72,190.32x = 3,011,407,920.23
  5. Step 5: Solve for x
    x = 3,011,407,920.23/72,190.32
  6. Step 6: Final answer
    x = 41,714.84

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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.