Home / 74,424.45-111,640.32-30,045.67

Finding the Fourth Proportional to 74,424.45, 111,640.32 and 30,045.67

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Solution

The fourth proportional to 74,424.45, 111,640.32 and 30,045.67 is: 45,069.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,424.45 : 111,640.32 = 30,045.67 : x
  2. Step 2: Convert to fraction form
    74,424.45/111,640.32 = 30,045.67/x
  3. Step 3: Cross multiply
    74,424.45x = 111,640.32 × 30,045.67
  4. Step 4: Simplify right side
    74,424.45x = 3,354,308,213.41
  5. Step 5: Solve for x
    x = 3,354,308,213.41/74,424.45
  6. Step 6: Final answer
    x = 45,069.98

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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.