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Finding the Fourth Proportional to 67,850.21, 101,774.10 and 27,860.51

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Solution

The fourth proportional to 67,850.21, 101,774.10 and 27,860.51 is: 41,790.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,850.21 : 101,774.10 = 27,860.51 : x
  2. Step 2: Convert to fraction form
    67,850.21/101,774.10 = 27,860.51/x
  3. Step 3: Cross multiply
    67,850.21x = 101,774.10 × 27,860.51
  4. Step 4: Simplify right side
    67,850.21x = 2,835,478,330.79
  5. Step 5: Solve for x
    x = 2,835,478,330.79/67,850.21
  6. Step 6: Final answer
    x = 41,790.27

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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.