Home / 97,914.09-135,121.90-55,480.89

Finding the Fourth Proportional to 97,914.09, 135,121.90 and 55,480.89

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Solution

The fourth proportional to 97,914.09, 135,121.90 and 55,480.89 is: 76,563.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    97,914.09 : 135,121.90 = 55,480.89 : x
  2. Step 2: Convert to fraction form
    97,914.09/135,121.90 = 55,480.89/x
  3. Step 3: Cross multiply
    97,914.09x = 135,121.90 × 55,480.89
  4. Step 4: Simplify right side
    97,914.09x = 7,496,683,270.49
  5. Step 5: Solve for x
    x = 7,496,683,270.49/97,914.09
  6. Step 6: Final answer
    x = 76,563.89

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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.