Home / 51,100.20-76,650.30-17,809.20

Finding the Fourth Proportional to 51,100.20, 76,650.30 and 17,809.20

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Solution

The fourth proportional to 51,100.20, 76,650.30 and 17,809.20 is: 26,713.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,100.20 : 76,650.30 = 17,809.20 : x
  2. Step 2: Convert to fraction form
    51,100.20/76,650.30 = 17,809.20/x
  3. Step 3: Cross multiply
    51,100.20x = 76,650.30 × 17,809.20
  4. Step 4: Simplify right side
    51,100.20x = 1,365,080,522.76
  5. Step 5: Solve for x
    x = 1,365,080,522.76/51,100.20
  6. Step 6: Final answer
    x = 26,713.80

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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.