Home / 80,913.58-111,662.68-45,102.66

Finding the Fourth Proportional to 80,913.58, 111,662.68 and 45,102.66

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Solution

The fourth proportional to 80,913.58, 111,662.68 and 45,102.66 is: 62,242.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,913.58 : 111,662.68 = 45,102.66 : x
  2. Step 2: Convert to fraction form
    80,913.58/111,662.68 = 45,102.66/x
  3. Step 3: Cross multiply
    80,913.58x = 111,662.68 × 45,102.66
  4. Step 4: Simplify right side
    80,913.58x = 5,036,283,890.73
  5. Step 5: Solve for x
    x = 5,036,283,890.73/80,913.58
  6. Step 6: Final answer
    x = 62,242.75

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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.