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Finding the Fourth Proportional to 79,473.45, 109,704.60 and 47,636.19

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Solution

The fourth proportional to 79,473.45, 109,704.60 and 47,636.19 is: 65,756.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,473.45 : 109,704.60 = 47,636.19 : x
  2. Step 2: Convert to fraction form
    79,473.45/109,704.60 = 47,636.19/x
  3. Step 3: Cross multiply
    79,473.45x = 109,704.60 × 47,636.19
  4. Step 4: Simplify right side
    79,473.45x = 5,225,909,169.47
  5. Step 5: Solve for x
    x = 5,225,909,169.47/79,473.45
  6. Step 6: Final answer
    x = 65,756.67

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.