Home / 79,342.63-119,014.38-20,178.34

Finding the Fourth Proportional to 79,342.63, 119,014.38 and 20,178.34

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Solution

The fourth proportional to 79,342.63, 119,014.38 and 20,178.34 is: 30,267.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,342.63 : 119,014.38 = 20,178.34 : x
  2. Step 2: Convert to fraction form
    79,342.63/119,014.38 = 20,178.34/x
  3. Step 3: Cross multiply
    79,342.63x = 119,014.38 × 20,178.34
  4. Step 4: Simplify right side
    79,342.63x = 2,401,512,326.99
  5. Step 5: Solve for x
    x = 2,401,512,326.99/79,342.63
  6. Step 6: Final answer
    x = 30,267.62

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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.