Home / 97,911.14-135,120-55,469.36

Finding the Fourth Proportional to 97,911.14, 135,120 and 55,469.36

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Solution

The fourth proportional to 97,911.14, 135,120 and 55,469.36 is: 76,549.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    97,911.14 : 135,120 = 55,469.36 : x
  2. Step 2: Convert to fraction form
    97,911.14/135,120 = 55,469.36/x
  3. Step 3: Cross multiply
    97,911.14x = 135,120 × 55,469.36
  4. Step 4: Simplify right side
    97,911.14x = 7,495,019,247.60
  5. Step 5: Solve for x
    x = 7,495,019,247.60/97,911.14
  6. Step 6: Final answer
    x = 76,549.20

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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.