Home / 80,933.04-111,093.39-71,780.45

Finding the Fourth Proportional to 80,933.04, 111,093.39 and 71,780.45

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Solution

The fourth proportional to 80,933.04, 111,093.39 and 71,780.45 is: 98,530.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,933.04 : 111,093.39 = 71,780.45 : x
  2. Step 2: Convert to fraction form
    80,933.04/111,093.39 = 71,780.45/x
  3. Step 3: Cross multiply
    80,933.04x = 111,093.39 × 71,780.45
  4. Step 4: Simplify right side
    80,933.04x = 7,974,332,970.76
  5. Step 5: Solve for x
    x = 7,974,332,970.76/80,933.04
  6. Step 6: Final answer
    x = 98,530.01

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.