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Finding the Fourth Proportional to 79,293.06, 118,905.03 and 30,010.50

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Solution

The fourth proportional to 79,293.06, 118,905.03 and 30,010.50 is: 45,002.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,293.06 : 118,905.03 = 30,010.50 : x
  2. Step 2: Convert to fraction form
    79,293.06/118,905.03 = 30,010.50/x
  3. Step 3: Cross multiply
    79,293.06x = 118,905.03 × 30,010.50
  4. Step 4: Simplify right side
    79,293.06x = 3,568,399,402.82
  5. Step 5: Solve for x
    x = 3,568,399,402.82/79,293.06
  6. Step 6: Final answer
    x = 45,002.67

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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.