Home / 43,409.20-65,135.40-17,114.80

Finding the Fourth Proportional to 43,409.20, 65,135.40 and 17,114.80

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Solution

The fourth proportional to 43,409.20, 65,135.40 and 17,114.80 is: 25,680.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,409.20 : 65,135.40 = 17,114.80 : x
  2. Step 2: Convert to fraction form
    43,409.20/65,135.40 = 17,114.80/x
  3. Step 3: Cross multiply
    43,409.20x = 65,135.40 × 17,114.80
  4. Step 4: Simplify right side
    43,409.20x = 1,114,779,343.92
  5. Step 5: Solve for x
    x = 1,114,779,343.92/43,409.20
  6. Step 6: Final answer
    x = 25,680.72

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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.