Home / 78,828.96-118,240.14-36,694.56

Finding the Fourth Proportional to 78,828.96, 118,240.14 and 36,694.56

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Solution

The fourth proportional to 78,828.96, 118,240.14 and 36,694.56 is: 55,040.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,828.96 : 118,240.14 = 36,694.56 : x
  2. Step 2: Convert to fraction form
    78,828.96/118,240.14 = 36,694.56/x
  3. Step 3: Cross multiply
    78,828.96x = 118,240.14 × 36,694.56
  4. Step 4: Simplify right side
    78,828.96x = 4,338,769,911.64
  5. Step 5: Solve for x
    x = 4,338,769,911.64/78,828.96
  6. Step 6: Final answer
    x = 55,040.30

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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.