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Finding the Fourth Proportional to 40,267.80, 60,328.80 and 34,435.80

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Solution

The fourth proportional to 40,267.80, 60,328.80 and 34,435.80 is: 51,591.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,267.80 : 60,328.80 = 34,435.80 : x
  2. Step 2: Convert to fraction form
    40,267.80/60,328.80 = 34,435.80/x
  3. Step 3: Cross multiply
    40,267.80x = 60,328.80 × 34,435.80
  4. Step 4: Simplify right side
    40,267.80x = 2,077,470,491.04
  5. Step 5: Solve for x
    x = 2,077,470,491.04/40,267.80
  6. Step 6: Final answer
    x = 51,591.36

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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.