Home / 75,433.40-113,078.10-28,035.80

Finding the Fourth Proportional to 75,433.40, 113,078.10 and 28,035.80

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Solution

The fourth proportional to 75,433.40, 113,078.10 and 28,035.80 is: 42,026.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,433.40 : 113,078.10 = 28,035.80 : x
  2. Step 2: Convert to fraction form
    75,433.40/113,078.10 = 28,035.80/x
  3. Step 3: Cross multiply
    75,433.40x = 113,078.10 × 28,035.80
  4. Step 4: Simplify right side
    75,433.40x = 3,170,234,995.98
  5. Step 5: Solve for x
    x = 3,170,234,995.98/75,433.40
  6. Step 6: Final answer
    x = 42,026.94

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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.