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Finding the Fourth Proportional to 97,900.38, 135,099.90 and 57,616.52

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Solution

The fourth proportional to 97,900.38, 135,099.90 and 57,616.52 is: 79,509.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    97,900.38 : 135,099.90 = 57,616.52 : x
  2. Step 2: Convert to fraction form
    97,900.38/135,099.90 = 57,616.52/x
  3. Step 3: Cross multiply
    97,900.38x = 135,099.90 × 57,616.52
  4. Step 4: Simplify right side
    97,900.38x = 7,783,985,414.85
  5. Step 5: Solve for x
    x = 7,783,985,414.85/97,900.38
  6. Step 6: Final answer
    x = 79,509.25

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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.