Home / 74,188.72-111,236.24-40,931.97

Finding the Fourth Proportional to 74,188.72, 111,236.24 and 40,931.97

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Solution

The fourth proportional to 74,188.72, 111,236.24 and 40,931.97 is: 61,372.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,188.72 : 111,236.24 = 40,931.97 : x
  2. Step 2: Convert to fraction form
    74,188.72/111,236.24 = 40,931.97/x
  3. Step 3: Cross multiply
    74,188.72x = 111,236.24 × 40,931.97
  4. Step 4: Simplify right side
    74,188.72x = 4,553,118,438.59
  5. Step 5: Solve for x
    x = 4,553,118,438.59/74,188.72
  6. Step 6: Final answer
    x = 61,372.11

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.