Home / 43,695.20-65,544.25-12,105.58

Finding the Fourth Proportional to 43,695.20, 65,544.25 and 12,105.58

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Solution

The fourth proportional to 43,695.20, 65,544.25 and 12,105.58 is: 18,158.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,695.20 : 65,544.25 = 12,105.58 : x
  2. Step 2: Convert to fraction form
    43,695.20/65,544.25 = 12,105.58/x
  3. Step 3: Cross multiply
    43,695.20x = 65,544.25 × 12,105.58
  4. Step 4: Simplify right side
    43,695.20x = 793,450,967.79
  5. Step 5: Solve for x
    x = 793,450,967.79/43,695.20
  6. Step 6: Final answer
    x = 18,158.77

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1.5x scale

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.