Home / 74,522.06-111,766.30-21,212.86

Finding the Fourth Proportional to 74,522.06, 111,766.30 and 21,212.86

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Solution

The fourth proportional to 74,522.06, 111,766.30 and 21,212.86 is: 31,814.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,522.06 : 111,766.30 = 21,212.86 : x
  2. Step 2: Convert to fraction form
    74,522.06/111,766.30 = 21,212.86/x
  3. Step 3: Cross multiply
    74,522.06x = 111,766.30 × 21,212.86
  4. Step 4: Simplify right side
    74,522.06x = 2,370,882,690.07
  5. Step 5: Solve for x
    x = 2,370,882,690.07/74,522.06
  6. Step 6: Final answer
    x = 31,814.51

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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.