Home / 75,487.12-113,204.76-28,753.36

Finding the Fourth Proportional to 75,487.12, 113,204.76 and 28,753.36

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Solution

The fourth proportional to 75,487.12, 113,204.76 and 28,753.36 is: 43,120.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,487.12 : 113,204.76 = 28,753.36 : x
  2. Step 2: Convert to fraction form
    75,487.12/113,204.76 = 28,753.36/x
  3. Step 3: Cross multiply
    75,487.12x = 113,204.76 × 28,753.36
  4. Step 4: Simplify right side
    75,487.12x = 3,255,017,217.99
  5. Step 5: Solve for x
    x = 3,255,017,217.99/75,487.12
  6. Step 6: Final answer
    x = 43,120.17

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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.