Home / 98,361.46-135,747.76-55,919.89

Finding the Fourth Proportional to 98,361.46, 135,747.76 and 55,919.89

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Solution

The fourth proportional to 98,361.46, 135,747.76 and 55,919.89 is: 77,174.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,361.46 : 135,747.76 = 55,919.89 : x
  2. Step 2: Convert to fraction form
    98,361.46/135,747.76 = 55,919.89/x
  3. Step 3: Cross multiply
    98,361.46x = 135,747.76 × 55,919.89
  4. Step 4: Simplify right side
    98,361.46x = 7,590,999,327.78
  5. Step 5: Solve for x
    x = 7,590,999,327.78/98,361.46
  6. Step 6: Final answer
    x = 77,174.53

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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.