Home / 74,211.66-111,132.84-51,920.67

Finding the Fourth Proportional to 74,211.66, 111,132.84 and 51,920.67

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Solution

The fourth proportional to 74,211.66, 111,132.84 and 51,920.67 is: 77,751.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,211.66 : 111,132.84 = 51,920.67 : x
  2. Step 2: Convert to fraction form
    74,211.66/111,132.84 = 51,920.67/x
  3. Step 3: Cross multiply
    74,211.66x = 111,132.84 × 51,920.67
  4. Step 4: Simplify right side
    74,211.66x = 5,770,091,511.80
  5. Step 5: Solve for x
    x = 5,770,091,511.80/74,211.66
  6. Step 6: Final answer
    x = 77,751.82

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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.