Home / 97,942.18-135,188.24-57,679.30

Finding the Fourth Proportional to 97,942.18, 135,188.24 and 57,679.30

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Solution

The fourth proportional to 97,942.18, 135,188.24 and 57,679.30 is: 79,613.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    97,942.18 : 135,188.24 = 57,679.30 : x
  2. Step 2: Convert to fraction form
    97,942.18/135,188.24 = 57,679.30/x
  3. Step 3: Cross multiply
    97,942.18x = 135,188.24 × 57,679.30
  4. Step 4: Simplify right side
    97,942.18x = 7,797,563,051.43
  5. Step 5: Solve for x
    x = 7,797,563,051.43/97,942.18
  6. Step 6: Final answer
    x = 79,613.94

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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.