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Finding the Fourth Proportional to 43,808.20, 65,712.30 and 33,977.80

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Solution

The fourth proportional to 43,808.20, 65,712.30 and 33,977.80 is: 50,966.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,808.20 : 65,712.30 = 33,977.80 : x
  2. Step 2: Convert to fraction form
    43,808.20/65,712.30 = 33,977.80/x
  3. Step 3: Cross multiply
    43,808.20x = 65,712.30 × 33,977.80
  4. Step 4: Simplify right side
    43,808.20x = 2,232,759,386.94
  5. Step 5: Solve for x
    x = 2,232,759,386.94/43,808.20
  6. Step 6: Final answer
    x = 50,966.70

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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.