Home / 68,114.06-93,983.31-39,814.28

Finding the Fourth Proportional to 68,114.06, 93,983.31 and 39,814.28

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Solution

The fourth proportional to 68,114.06, 93,983.31 and 39,814.28 is: 54,935.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,114.06 : 93,983.31 = 39,814.28 : x
  2. Step 2: Convert to fraction form
    68,114.06/93,983.31 = 39,814.28/x
  3. Step 3: Cross multiply
    68,114.06x = 93,983.31 × 39,814.28
  4. Step 4: Simplify right side
    68,114.06x = 3,741,877,349.75
  5. Step 5: Solve for x
    x = 3,741,877,349.75/68,114.06
  6. Step 6: Final answer
    x = 54,935.47

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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.