Home / 97,990.48-135,222.78-55,551.88

Finding the Fourth Proportional to 97,990.48, 135,222.78 and 55,551.88

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Solution

The fourth proportional to 97,990.48, 135,222.78 and 55,551.88 is: 76,659.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    97,990.48 : 135,222.78 = 55,551.88 : x
  2. Step 2: Convert to fraction form
    97,990.48/135,222.78 = 55,551.88/x
  3. Step 3: Cross multiply
    97,990.48x = 135,222.78 × 55,551.88
  4. Step 4: Simplify right side
    97,990.48x = 7,511,879,647.83
  5. Step 5: Solve for x
    x = 7,511,879,647.83/97,990.48
  6. Step 6: Final answer
    x = 76,659.28

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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.