Home / 86,905.76-119,929.94-47,161.76

Finding the Fourth Proportional to 86,905.76, 119,929.94 and 47,161.76

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Solution

The fourth proportional to 86,905.76, 119,929.94 and 47,161.76 is: 65,083.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,905.76 : 119,929.94 = 47,161.76 : x
  2. Step 2: Convert to fraction form
    86,905.76/119,929.94 = 47,161.76/x
  3. Step 3: Cross multiply
    86,905.76x = 119,929.94 × 47,161.76
  4. Step 4: Simplify right side
    86,905.76x = 5,656,107,047.09
  5. Step 5: Solve for x
    x = 5,656,107,047.09/86,905.76
  6. Step 6: Final answer
    x = 65,083.22

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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.