Home / 77,115.06-115,593.66-43,764.66

Finding the Fourth Proportional to 77,115.06, 115,593.66 and 43,764.66

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Solution

The fourth proportional to 77,115.06, 115,593.66 and 43,764.66 is: 65,602.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,115.06 : 115,593.66 = 43,764.66 : x
  2. Step 2: Convert to fraction form
    77,115.06/115,593.66 = 43,764.66/x
  3. Step 3: Cross multiply
    77,115.06x = 115,593.66 × 43,764.66
  4. Step 4: Simplify right side
    77,115.06x = 5,058,917,228.06
  5. Step 5: Solve for x
    x = 5,058,917,228.06/77,115.06
  6. Step 6: Final answer
    x = 65,602.20

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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.