Home / 78,889.20-118,202.58-55,466.52

Finding the Fourth Proportional to 78,889.20, 118,202.58 and 55,466.52

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Solution

The fourth proportional to 78,889.20, 118,202.58 and 55,466.52 is: 83,107.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,889.20 : 118,202.58 = 55,466.52 : x
  2. Step 2: Convert to fraction form
    78,889.20/118,202.58 = 55,466.52/x
  3. Step 3: Cross multiply
    78,889.20x = 118,202.58 × 55,466.52
  4. Step 4: Simplify right side
    78,889.20x = 6,556,285,767.62
  5. Step 5: Solve for x
    x = 6,556,285,767.62/78,889.20
  6. Step 6: Final answer
    x = 83,107.52

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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.