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Finding the Fourth Proportional to 43,749.60, 65,624.40 and 17,440.80

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Solution

The fourth proportional to 43,749.60, 65,624.40 and 17,440.80 is: 26,161.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,749.60 : 65,624.40 = 17,440.80 : x
  2. Step 2: Convert to fraction form
    43,749.60/65,624.40 = 17,440.80/x
  3. Step 3: Cross multiply
    43,749.60x = 65,624.40 × 17,440.80
  4. Step 4: Simplify right side
    43,749.60x = 1,144,542,035.52
  5. Step 5: Solve for x
    x = 1,144,542,035.52/43,749.60
  6. Step 6: Final answer
    x = 26,161.20

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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.