Home / 56,619.76-84,918.30-53,809.60

Finding the Fourth Proportional to 56,619.76, 84,918.30 and 53,809.60

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Solution

The fourth proportional to 56,619.76, 84,918.30 and 53,809.60 is: 80,703.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,619.76 : 84,918.30 = 53,809.60 : x
  2. Step 2: Convert to fraction form
    56,619.76/84,918.30 = 53,809.60/x
  3. Step 3: Cross multiply
    56,619.76x = 84,918.30 × 53,809.60
  4. Step 4: Simplify right side
    56,619.76x = 4,569,419,755.68
  5. Step 5: Solve for x
    x = 4,569,419,755.68/56,619.76
  6. Step 6: Final answer
    x = 80,703.62

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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.