Home / 52,756.11-79,131.33-13,313.57

Finding the Fourth Proportional to 52,756.11, 79,131.33 and 13,313.57

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Solution

The fourth proportional to 52,756.11, 79,131.33 and 13,313.57 is: 19,969.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,756.11 : 79,131.33 = 13,313.57 : x
  2. Step 2: Convert to fraction form
    52,756.11/79,131.33 = 13,313.57/x
  3. Step 3: Cross multiply
    52,756.11x = 79,131.33 × 13,313.57
  4. Step 4: Simplify right side
    52,756.11x = 1,053,520,105.49
  5. Step 5: Solve for x
    x = 1,053,520,105.49/52,756.11
  6. Step 6: Final answer
    x = 19,969.63

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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.