Home / 91,905.36-137,802.64-41,295.12

Finding the Fourth Proportional to 91,905.36, 137,802.64 and 41,295.12

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Solution

The fourth proportional to 91,905.36, 137,802.64 and 41,295.12 is: 61,917.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,905.36 : 137,802.64 = 41,295.12 : x
  2. Step 2: Convert to fraction form
    91,905.36/137,802.64 = 41,295.12/x
  3. Step 3: Cross multiply
    91,905.36x = 137,802.64 × 41,295.12
  4. Step 4: Simplify right side
    91,905.36x = 5,690,576,555.12
  5. Step 5: Solve for x
    x = 5,690,576,555.12/91,905.36
  6. Step 6: Final answer
    x = 61,917.79

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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.