Home / 78,610.46-117,891.39-26,009.06

Finding the Fourth Proportional to 78,610.46, 117,891.39 and 26,009.06

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Solution

The fourth proportional to 78,610.46, 117,891.39 and 26,009.06 is: 39,005.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,610.46 : 117,891.39 = 26,009.06 : x
  2. Step 2: Convert to fraction form
    78,610.46/117,891.39 = 26,009.06/x
  3. Step 3: Cross multiply
    78,610.46x = 117,891.39 × 26,009.06
  4. Step 4: Simplify right side
    78,610.46x = 3,066,244,235.99
  5. Step 5: Solve for x
    x = 3,066,244,235.99/78,610.46
  6. Step 6: Final answer
    x = 39,005.55

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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.