Home / 97,868.36-135,061.54-55,425.96

Finding the Fourth Proportional to 97,868.36, 135,061.54 and 55,425.96

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Solution

The fourth proportional to 97,868.36, 135,061.54 and 55,425.96 is: 76,489.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    97,868.36 : 135,061.54 = 55,425.96 : x
  2. Step 2: Convert to fraction form
    97,868.36/135,061.54 = 55,425.96/x
  3. Step 3: Cross multiply
    97,868.36x = 135,061.54 × 55,425.96
  4. Step 4: Simplify right side
    97,868.36x = 7,485,915,513.58
  5. Step 5: Solve for x
    x = 7,485,915,513.58/97,868.36
  6. Step 6: Final answer
    x = 76,489.64

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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.