Home / 97,958.48-135,184.22-57,121.50

Finding the Fourth Proportional to 97,958.48, 135,184.22 and 57,121.50

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Solution

The fourth proportional to 97,958.48, 135,184.22 and 57,121.50 is: 78,828.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    97,958.48 : 135,184.22 = 57,121.50 : x
  2. Step 2: Convert to fraction form
    97,958.48/135,184.22 = 57,121.50/x
  3. Step 3: Cross multiply
    97,958.48x = 135,184.22 × 57,121.50
  4. Step 4: Simplify right side
    97,958.48x = 7,721,926,179.58
  5. Step 5: Solve for x
    x = 7,721,926,179.58/97,958.48
  6. Step 6: Final answer
    x = 78,828.56

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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.