Home / 92,538.40-138,807.60-33,383.20

Finding the Fourth Proportional to 92,538.40, 138,807.60 and 33,383.20

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Solution

The fourth proportional to 92,538.40, 138,807.60 and 33,383.20 is: 50,074.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,538.40 : 138,807.60 = 33,383.20 : x
  2. Step 2: Convert to fraction form
    92,538.40/138,807.60 = 33,383.20/x
  3. Step 3: Cross multiply
    92,538.40x = 138,807.60 × 33,383.20
  4. Step 4: Simplify right side
    92,538.40x = 4,633,841,872.32
  5. Step 5: Solve for x
    x = 4,633,841,872.32/92,538.40
  6. Step 6: Final answer
    x = 50,074.80

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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.