Home / 100,051.41-150,021.73-40,928.61

Finding the Fourth Proportional to 100,051.41, 150,021.73 and 40,928.61

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Solution

The fourth proportional to 100,051.41, 150,021.73 and 40,928.61 is: 61,370.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,051.41 : 150,021.73 = 40,928.61 : x
  2. Step 2: Convert to fraction form
    100,051.41/150,021.73 = 40,928.61/x
  3. Step 3: Cross multiply
    100,051.41x = 150,021.73 × 40,928.61
  4. Step 4: Simplify right side
    100,051.41x = 6,140,180,878.70
  5. Step 5: Solve for x
    x = 6,140,180,878.70/100,051.41
  6. Step 6: Final answer
    x = 61,370.26

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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.