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Finding the Fourth Proportional to 43,378.80, 65,165.40 and 41,607.60

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Solution

The fourth proportional to 43,378.80, 65,165.40 and 41,607.60 is: 62,504.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,378.80 : 65,165.40 = 41,607.60 : x
  2. Step 2: Convert to fraction form
    43,378.80/65,165.40 = 41,607.60/x
  3. Step 3: Cross multiply
    43,378.80x = 65,165.40 × 41,607.60
  4. Step 4: Simplify right side
    43,378.80x = 2,711,375,897.04
  5. Step 5: Solve for x
    x = 2,711,375,897.04/43,378.80
  6. Step 6: Final answer
    x = 62,504.63

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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.