Home / 97,836.87-135,018.09-55,394.49

Finding the Fourth Proportional to 97,836.87, 135,018.09 and 55,394.49

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Solution

The fourth proportional to 97,836.87, 135,018.09 and 55,394.49 is: 76,446.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    97,836.87 : 135,018.09 = 55,394.49 : x
  2. Step 2: Convert to fraction form
    97,836.87/135,018.09 = 55,394.49/x
  3. Step 3: Cross multiply
    97,836.87x = 135,018.09 × 55,394.49
  4. Step 4: Simplify right side
    97,836.87x = 7,479,258,236.32
  5. Step 5: Solve for x
    x = 7,479,258,236.32/97,836.87
  6. Step 6: Final answer
    x = 76,446.21

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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.