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Finding the Fourth Proportional to 67,110.60, 100,730.70 and 40,866.60

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Solution

The fourth proportional to 67,110.60, 100,730.70 and 40,866.60 is: 61,339.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,110.60 : 100,730.70 = 40,866.60 : x
  2. Step 2: Convert to fraction form
    67,110.60/100,730.70 = 40,866.60/x
  3. Step 3: Cross multiply
    67,110.60x = 100,730.70 × 40,866.60
  4. Step 4: Simplify right side
    67,110.60x = 4,116,521,224.62
  5. Step 5: Solve for x
    x = 4,116,521,224.62/67,110.60
  6. Step 6: Final answer
    x = 61,339.36

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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.