Home / 75,101.60-103,638.66-41,109.28

Finding the Fourth Proportional to 75,101.60, 103,638.66 and 41,109.28

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Solution

The fourth proportional to 75,101.60, 103,638.66 and 41,109.28 is: 56,729.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,101.60 : 103,638.66 = 41,109.28 : x
  2. Step 2: Convert to fraction form
    75,101.60/103,638.66 = 41,109.28/x
  3. Step 3: Cross multiply
    75,101.60x = 103,638.66 × 41,109.28
  4. Step 4: Simplify right side
    75,101.60x = 4,260,510,692.76
  5. Step 5: Solve for x
    x = 4,260,510,692.76/75,101.60
  6. Step 6: Final answer
    x = 56,729.96

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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.