Home / 98,381.76-135,766.85-55,942.89

Finding the Fourth Proportional to 98,381.76, 135,766.85 and 55,942.89

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Solution

The fourth proportional to 98,381.76, 135,766.85 and 55,942.89 is: 77,201.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,381.76 : 135,766.85 = 55,942.89 : x
  2. Step 2: Convert to fraction form
    98,381.76/135,766.85 = 55,942.89/x
  3. Step 3: Cross multiply
    98,381.76x = 135,766.85 × 55,942.89
  4. Step 4: Simplify right side
    98,381.76x = 7,595,189,675.48
  5. Step 5: Solve for x
    x = 7,595,189,675.48/98,381.76
  6. Step 6: Final answer
    x = 77,201.20

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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.