Home / 75,709.50-104,478.26-43,003.68

Finding the Fourth Proportional to 75,709.50, 104,478.26 and 43,003.68

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Solution

The fourth proportional to 75,709.50, 104,478.26 and 43,003.68 is: 59,344.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,709.50 : 104,478.26 = 43,003.68 : x
  2. Step 2: Convert to fraction form
    75,709.50/104,478.26 = 43,003.68/x
  3. Step 3: Cross multiply
    75,709.50x = 104,478.26 × 43,003.68
  4. Step 4: Simplify right side
    75,709.50x = 4,492,949,660.00
  5. Step 5: Solve for x
    x = 4,492,949,660.00/75,709.50
  6. Step 6: Final answer
    x = 59,344.60

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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.