Home / 79,188.14-109,281.40-45,195.96

Finding the Fourth Proportional to 79,188.14, 109,281.40 and 45,195.96

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Solution

The fourth proportional to 79,188.14, 109,281.40 and 45,195.96 is: 62,371.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,188.14 : 109,281.40 = 45,195.96 : x
  2. Step 2: Convert to fraction form
    79,188.14/109,281.40 = 45,195.96/x
  3. Step 3: Cross multiply
    79,188.14x = 109,281.40 × 45,195.96
  4. Step 4: Simplify right side
    79,188.14x = 4,939,077,783.14
  5. Step 5: Solve for x
    x = 4,939,077,783.14/79,188.14
  6. Step 6: Final answer
    x = 62,371.43

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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.