Home / 79,718.45-119,584.55-20,553.62

Finding the Fourth Proportional to 79,718.45, 119,584.55 and 20,553.62

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Solution

The fourth proportional to 79,718.45, 119,584.55 and 20,553.62 is: 30,832.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,718.45 : 119,584.55 = 20,553.62 : x
  2. Step 2: Convert to fraction form
    79,718.45/119,584.55 = 20,553.62/x
  3. Step 3: Cross multiply
    79,718.45x = 119,584.55 × 20,553.62
  4. Step 4: Simplify right side
    79,718.45x = 2,457,894,852.03
  5. Step 5: Solve for x
    x = 2,457,894,852.03/79,718.45
  6. Step 6: Final answer
    x = 30,832.20

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.