Home / 204,479.16-306,722.81-54,719.20

Finding the Fourth Proportional to 204,479.16, 306,722.81 and 54,719.20

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Solution

The fourth proportional to 204,479.16, 306,722.81 and 54,719.20 is: 82,079.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    204,479.16 : 306,722.81 = 54,719.20 : x
  2. Step 2: Convert to fraction form
    204,479.16/306,722.81 = 54,719.20/x
  3. Step 3: Cross multiply
    204,479.16x = 306,722.81 × 54,719.20
  4. Step 4: Simplify right side
    204,479.16x = 16,783,626,784.95
  5. Step 5: Solve for x
    x = 16,783,626,784.95/204,479.16
  6. Step 6: Final answer
    x = 82,079.89

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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.