Home / 71,830.16-107,742.36-27,455.12

Finding the Fourth Proportional to 71,830.16, 107,742.36 and 27,455.12

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Solution

The fourth proportional to 71,830.16, 107,742.36 and 27,455.12 is: 41,181.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,830.16 : 107,742.36 = 27,455.12 : x
  2. Step 2: Convert to fraction form
    71,830.16/107,742.36 = 27,455.12/x
  3. Step 3: Cross multiply
    71,830.16x = 107,742.36 × 27,455.12
  4. Step 4: Simplify right side
    71,830.16x = 2,958,079,422.88
  5. Step 5: Solve for x
    x = 2,958,079,422.88/71,830.16
  6. Step 6: Final answer
    x = 41,181.58

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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.