Home / 97,829.90-135,005.76-55,396.70

Finding the Fourth Proportional to 97,829.90, 135,005.76 and 55,396.70

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Solution

The fourth proportional to 97,829.90, 135,005.76 and 55,396.70 is: 76,447.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    97,829.90 : 135,005.76 = 55,396.70 : x
  2. Step 2: Convert to fraction form
    97,829.90/135,005.76 = 55,396.70/x
  3. Step 3: Cross multiply
    97,829.90x = 135,005.76 × 55,396.70
  4. Step 4: Simplify right side
    97,829.90x = 7,478,873,584.99
  5. Step 5: Solve for x
    x = 7,478,873,584.99/97,829.90
  6. Step 6: Final answer
    x = 76,447.73

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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.