Home / 51,172.20-76,758.30-21,582.18

Finding the Fourth Proportional to 51,172.20, 76,758.30 and 21,582.18

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Solution

The fourth proportional to 51,172.20, 76,758.30 and 21,582.18 is: 32,373.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,172.20 : 76,758.30 = 21,582.18 : x
  2. Step 2: Convert to fraction form
    51,172.20/76,758.30 = 21,582.18/x
  3. Step 3: Cross multiply
    51,172.20x = 76,758.30 × 21,582.18
  4. Step 4: Simplify right side
    51,172.20x = 1,656,611,447.09
  5. Step 5: Solve for x
    x = 1,656,611,447.09/51,172.20
  6. Step 6: Final answer
    x = 32,373.27

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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.