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Finding the Fourth Proportional to 53,455.80, 80,183.70 and 43,606.20

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Solution

The fourth proportional to 53,455.80, 80,183.70 and 43,606.20 is: 65,409.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,455.80 : 80,183.70 = 43,606.20 : x
  2. Step 2: Convert to fraction form
    53,455.80/80,183.70 = 43,606.20/x
  3. Step 3: Cross multiply
    53,455.80x = 80,183.70 × 43,606.20
  4. Step 4: Simplify right side
    53,455.80x = 3,496,506,458.94
  5. Step 5: Solve for x
    x = 3,496,506,458.94/53,455.80
  6. Step 6: Final answer
    x = 65,409.30

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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.