Home / 98,380.84-135,764.93-55,939.37

Finding the Fourth Proportional to 98,380.84, 135,764.93 and 55,939.37

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Solution

The fourth proportional to 98,380.84, 135,764.93 and 55,939.37 is: 77,195.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,380.84 : 135,764.93 = 55,939.37 : x
  2. Step 2: Convert to fraction form
    98,380.84/135,764.93 = 55,939.37/x
  3. Step 3: Cross multiply
    98,380.84x = 135,764.93 × 55,939.37
  4. Step 4: Simplify right side
    98,380.84x = 7,594,604,173.03
  5. Step 5: Solve for x
    x = 7,594,604,173.03/98,380.84
  6. Step 6: Final answer
    x = 77,195.97

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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.