Home / 99,313.14-137,052.72-53,991.48

Finding the Fourth Proportional to 99,313.14, 137,052.72 and 53,991.48

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Solution

The fourth proportional to 99,313.14, 137,052.72 and 53,991.48 is: 74,508.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,313.14 : 137,052.72 = 53,991.48 : x
  2. Step 2: Convert to fraction form
    99,313.14/137,052.72 = 53,991.48/x
  3. Step 3: Cross multiply
    99,313.14x = 137,052.72 × 53,991.48
  4. Step 4: Simplify right side
    99,313.14x = 7,399,679,190.83
  5. Step 5: Solve for x
    x = 7,399,679,190.83/99,313.14
  6. Step 6: Final answer
    x = 74,508.56

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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.