Home / 79,519.19-109,738.85-45,538.67

Finding the Fourth Proportional to 79,519.19, 109,738.85 and 45,538.67

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Solution

The fourth proportional to 79,519.19, 109,738.85 and 45,538.67 is: 62,844.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,519.19 : 109,738.85 = 45,538.67 : x
  2. Step 2: Convert to fraction form
    79,519.19/109,738.85 = 45,538.67/x
  3. Step 3: Cross multiply
    79,519.19x = 109,738.85 × 45,538.67
  4. Step 4: Simplify right side
    79,519.19x = 4,997,361,579.14
  5. Step 5: Solve for x
    x = 4,997,361,579.14/79,519.19
  6. Step 6: Final answer
    x = 62,844.73

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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.