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Finding the Fourth Proportional to 81,179.42, 112,027.24 and 45,369.42

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Solution

The fourth proportional to 81,179.42, 112,027.24 and 45,369.42 is: 62,609.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,179.42 : 112,027.24 = 45,369.42 : x
  2. Step 2: Convert to fraction form
    81,179.42/112,027.24 = 45,369.42/x
  3. Step 3: Cross multiply
    81,179.42x = 112,027.24 × 45,369.42
  4. Step 4: Simplify right side
    81,179.42x = 5,082,610,903.00
  5. Step 5: Solve for x
    x = 5,082,610,903.00/81,179.42
  6. Step 6: Final answer
    x = 62,609.60

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.