Home / 97,071.68-133,947.92-54,629.12

Finding the Fourth Proportional to 97,071.68, 133,947.92 and 54,629.12

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Solution

The fourth proportional to 97,071.68, 133,947.92 and 54,629.12 is: 75,382.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    97,071.68 : 133,947.92 = 54,629.12 : x
  2. Step 2: Convert to fraction form
    97,071.68/133,947.92 = 54,629.12/x
  3. Step 3: Cross multiply
    97,071.68x = 133,947.92 × 54,629.12
  4. Step 4: Simplify right side
    97,071.68x = 7,317,456,995.43
  5. Step 5: Solve for x
    x = 7,317,456,995.43/97,071.68
  6. Step 6: Final answer
    x = 75,382.00

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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.