Home / 81,412.90-122,022.15-41,949.70

Finding the Fourth Proportional to 81,412.90, 122,022.15 and 41,949.70

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Solution

The fourth proportional to 81,412.90, 122,022.15 and 41,949.70 is: 62,874.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,412.90 : 122,022.15 = 41,949.70 : x
  2. Step 2: Convert to fraction form
    81,412.90/122,022.15 = 41,949.70/x
  3. Step 3: Cross multiply
    81,412.90x = 122,022.15 × 41,949.70
  4. Step 4: Simplify right side
    81,412.90x = 5,118,792,585.86
  5. Step 5: Solve for x
    x = 5,118,792,585.86/81,412.90
  6. Step 6: Final answer
    x = 62,874.47

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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.