Home / 51,690.43-71,324.25-30,473.79

Finding the Fourth Proportional to 51,690.43, 71,324.25 and 30,473.79

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Solution

The fourth proportional to 51,690.43, 71,324.25 and 30,473.79 is: 42,048.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,690.43 : 71,324.25 = 30,473.79 : x
  2. Step 2: Convert to fraction form
    51,690.43/71,324.25 = 30,473.79/x
  3. Step 3: Cross multiply
    51,690.43x = 71,324.25 × 30,473.79
  4. Step 4: Simplify right side
    51,690.43x = 2,173,520,216.41
  5. Step 5: Solve for x
    x = 2,173,520,216.41/51,690.43
  6. Step 6: Final answer
    x = 42,048.79

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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.