Home / 51,315.35-76,982.57-19,724.13

Finding the Fourth Proportional to 51,315.35, 76,982.57 and 19,724.13

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Solution

The fourth proportional to 51,315.35, 76,982.57 and 19,724.13 is: 29,589.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,315.35 : 76,982.57 = 19,724.13 : x
  2. Step 2: Convert to fraction form
    51,315.35/76,982.57 = 19,724.13/x
  3. Step 3: Cross multiply
    51,315.35x = 76,982.57 × 19,724.13
  4. Step 4: Simplify right side
    51,315.35x = 1,518,414,119.79
  5. Step 5: Solve for x
    x = 1,518,414,119.79/51,315.35
  6. Step 6: Final answer
    x = 29,589.86

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1.5x scale

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.