Home / 79,740.34-119,571.39-45,542.14

Finding the Fourth Proportional to 79,740.34, 119,571.39 and 45,542.14

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Solution

The fourth proportional to 79,740.34, 119,571.39 and 45,542.14 is: 68,290.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,740.34 : 119,571.39 = 45,542.14 : x
  2. Step 2: Convert to fraction form
    79,740.34/119,571.39 = 45,542.14/x
  3. Step 3: Cross multiply
    79,740.34x = 119,571.39 × 45,542.14
  4. Step 4: Simplify right side
    79,740.34x = 5,445,536,983.37
  5. Step 5: Solve for x
    x = 5,445,536,983.37/79,740.34
  6. Step 6: Final answer
    x = 68,290.87

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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.