Home / 81,683.26-122,464.04-34,312.23

Finding the Fourth Proportional to 81,683.26, 122,464.04 and 34,312.23

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Solution

The fourth proportional to 81,683.26, 122,464.04 and 34,312.23 is: 51,442.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,683.26 : 122,464.04 = 34,312.23 : x
  2. Step 2: Convert to fraction form
    81,683.26/122,464.04 = 34,312.23/x
  3. Step 3: Cross multiply
    81,683.26x = 122,464.04 × 34,312.23
  4. Step 4: Simplify right side
    81,683.26x = 4,202,014,135.65
  5. Step 5: Solve for x
    x = 4,202,014,135.65/81,683.26
  6. Step 6: Final answer
    x = 51,442.78

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1.5x scale

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.