Home / 80,972.97-111,788.45-53,795.70

Finding the Fourth Proportional to 80,972.97, 111,788.45 and 53,795.70

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Solution

The fourth proportional to 80,972.97, 111,788.45 and 53,795.70 is: 74,268.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,972.97 : 111,788.45 = 53,795.70 : x
  2. Step 2: Convert to fraction form
    80,972.97/111,788.45 = 53,795.70/x
  3. Step 3: Cross multiply
    80,972.97x = 111,788.45 × 53,795.70
  4. Step 4: Simplify right side
    80,972.97x = 6,013,737,650.69
  5. Step 5: Solve for x
    x = 6,013,737,650.69/80,972.97
  6. Step 6: Final answer
    x = 74,268.46

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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.