Home / 79,140.35-109,209.36-43,323.44

Finding the Fourth Proportional to 79,140.35, 109,209.36 and 43,323.44

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Solution

The fourth proportional to 79,140.35, 109,209.36 and 43,323.44 is: 59,783.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,140.35 : 109,209.36 = 43,323.44 : x
  2. Step 2: Convert to fraction form
    79,140.35/109,209.36 = 43,323.44/x
  3. Step 3: Cross multiply
    79,140.35x = 109,209.36 × 43,323.44
  4. Step 4: Simplify right side
    79,140.35x = 4,731,324,609.35
  5. Step 5: Solve for x
    x = 4,731,324,609.35/79,140.35
  6. Step 6: Final answer
    x = 59,783.98

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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.