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Finding the Fourth Proportional to 92,850.31, 128,134.84 and 50,408.84

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Solution

The fourth proportional to 92,850.31, 128,134.84 and 50,408.84 is: 69,564.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,850.31 : 128,134.84 = 50,408.84 : x
  2. Step 2: Convert to fraction form
    92,850.31/128,134.84 = 50,408.84/x
  3. Step 3: Cross multiply
    92,850.31x = 128,134.84 × 50,408.84
  4. Step 4: Simplify right side
    92,850.31x = 6,459,128,842.30
  5. Step 5: Solve for x
    x = 6,459,128,842.30/92,850.31
  6. Step 6: Final answer
    x = 69,564.97

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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.