Home / 104,764.56-144,578.64-57,019.64

Finding the Fourth Proportional to 104,764.56, 144,578.64 and 57,019.64

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Solution

The fourth proportional to 104,764.56, 144,578.64 and 57,019.64 is: 78,689.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,764.56 : 144,578.64 = 57,019.64 : x
  2. Step 2: Convert to fraction form
    104,764.56/144,578.64 = 57,019.64/x
  3. Step 3: Cross multiply
    104,764.56x = 144,578.64 × 57,019.64
  4. Step 4: Simplify right side
    104,764.56x = 8,243,822,004.49
  5. Step 5: Solve for x
    x = 8,243,822,004.49/104,764.56
  6. Step 6: Final answer
    x = 78,689.03

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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.