Home / 51,007.50-76,522.19-21,450.20

Finding the Fourth Proportional to 51,007.50, 76,522.19 and 21,450.20

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Solution

The fourth proportional to 51,007.50, 76,522.19 and 21,450.20 is: 32,179.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,007.50 : 76,522.19 = 21,450.20 : x
  2. Step 2: Convert to fraction form
    51,007.50/76,522.19 = 21,450.20/x
  3. Step 3: Cross multiply
    51,007.50x = 76,522.19 × 21,450.20
  4. Step 4: Simplify right side
    51,007.50x = 1,641,415,790.08
  5. Step 5: Solve for x
    x = 1,641,415,790.08/51,007.50
  6. Step 6: Final answer
    x = 32,179.89

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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.