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Finding the Fourth Proportional to 40,311, 60,460.02 and 28,588.68

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Solution

The fourth proportional to 40,311, 60,460.02 and 28,588.68 is: 42,878.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,311 : 60,460.02 = 28,588.68 : x
  2. Step 2: Convert to fraction form
    40,311/60,460.02 = 28,588.68/x
  3. Step 3: Cross multiply
    40,311x = 60,460.02 × 28,588.68
  4. Step 4: Simplify right side
    40,311x = 1,728,472,164.57
  5. Step 5: Solve for x
    x = 1,728,472,164.57/40,311
  6. Step 6: Final answer
    x = 42,878.42

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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.