Home / 51,290.10-76,924.35-21,708.90

Finding the Fourth Proportional to 51,290.10, 76,924.35 and 21,708.90

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Solution

The fourth proportional to 51,290.10, 76,924.35 and 21,708.90 is: 32,558.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,290.10 : 76,924.35 = 21,708.90 : x
  2. Step 2: Convert to fraction form
    51,290.10/76,924.35 = 21,708.90/x
  3. Step 3: Cross multiply
    51,290.10x = 76,924.35 × 21,708.90
  4. Step 4: Simplify right side
    51,290.10x = 1,669,943,021.72
  5. Step 5: Solve for x
    x = 1,669,943,021.72/51,290.10
  6. Step 6: Final answer
    x = 32,558.78

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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.