Home / 80,911.03-111,654.89-45,100.27

Finding the Fourth Proportional to 80,911.03, 111,654.89 and 45,100.27

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Solution

The fourth proportional to 80,911.03, 111,654.89 and 45,100.27 is: 62,237.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,911.03 : 111,654.89 = 45,100.27 : x
  2. Step 2: Convert to fraction form
    80,911.03/111,654.89 = 45,100.27/x
  3. Step 3: Cross multiply
    80,911.03x = 111,654.89 × 45,100.27
  4. Step 4: Simplify right side
    80,911.03x = 5,035,665,645.25
  5. Step 5: Solve for x
    x = 5,035,665,645.25/80,911.03
  6. Step 6: Final answer
    x = 62,237.08

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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.