Home / 48,571.62-72,814.20-18,982.72

Finding the Fourth Proportional to 48,571.62, 72,814.20 and 18,982.72

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Solution

The fourth proportional to 48,571.62, 72,814.20 and 18,982.72 is: 28,457.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,571.62 : 72,814.20 = 18,982.72 : x
  2. Step 2: Convert to fraction form
    48,571.62/72,814.20 = 18,982.72/x
  3. Step 3: Cross multiply
    48,571.62x = 72,814.20 × 18,982.72
  4. Step 4: Simplify right side
    48,571.62x = 1,382,211,570.62
  5. Step 5: Solve for x
    x = 1,382,211,570.62/48,571.62
  6. Step 6: Final answer
    x = 28,457.18

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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.