Home / 43,742.20-65,613.30-12,152.20

Finding the Fourth Proportional to 43,742.20, 65,613.30 and 12,152.20

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Solution

The fourth proportional to 43,742.20, 65,613.30 and 12,152.20 is: 18,228.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,742.20 : 65,613.30 = 12,152.20 : x
  2. Step 2: Convert to fraction form
    43,742.20/65,613.30 = 12,152.20/x
  3. Step 3: Cross multiply
    43,742.20x = 65,613.30 × 12,152.20
  4. Step 4: Simplify right side
    43,742.20x = 797,345,944.26
  5. Step 5: Solve for x
    x = 797,345,944.26/43,742.20
  6. Step 6: Final answer
    x = 18,228.30

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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.