Home / 80,908.17-111,653.79-45,100.44

Finding the Fourth Proportional to 80,908.17, 111,653.79 and 45,100.44

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Solution

The fourth proportional to 80,908.17, 111,653.79 and 45,100.44 is: 62,238.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,908.17 : 111,653.79 = 45,100.44 : x
  2. Step 2: Convert to fraction form
    80,908.17/111,653.79 = 45,100.44/x
  3. Step 3: Cross multiply
    80,908.17x = 111,653.79 × 45,100.44
  4. Step 4: Simplify right side
    80,908.17x = 5,035,635,056.67
  5. Step 5: Solve for x
    x = 5,035,635,056.67/80,908.17
  6. Step 6: Final answer
    x = 62,238.89

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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.