Home / 97,890.80-135,057.17-54,864

Finding the Fourth Proportional to 97,890.80, 135,057.17 and 54,864

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Solution

The fourth proportional to 97,890.80, 135,057.17 and 54,864 is: 75,694.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    97,890.80 : 135,057.17 = 54,864 : x
  2. Step 2: Convert to fraction form
    97,890.80/135,057.17 = 54,864/x
  3. Step 3: Cross multiply
    97,890.80x = 135,057.17 × 54,864
  4. Step 4: Simplify right side
    97,890.80x = 7,409,776,712.04
  5. Step 5: Solve for x
    x = 7,409,776,712.04/97,890.80
  6. Step 6: Final answer
    x = 75,694.32

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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.