Home / 78,908.44-118,419.23-53,544.71

Finding the Fourth Proportional to 78,908.44, 118,419.23 and 53,544.71

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Solution

The fourth proportional to 78,908.44, 118,419.23 and 53,544.71 is: 80,355.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,908.44 : 118,419.23 = 53,544.71 : x
  2. Step 2: Convert to fraction form
    78,908.44/118,419.23 = 53,544.71/x
  3. Step 3: Cross multiply
    78,908.44x = 118,419.23 × 53,544.71
  4. Step 4: Simplify right side
    78,908.44x = 6,340,722,870.54
  5. Step 5: Solve for x
    x = 6,340,722,870.54/78,908.44
  6. Step 6: Final answer
    x = 80,355.45

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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.