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Finding the Fourth Proportional to 100,050.80, 150,020.79 and 40,928.00

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Solution

The fourth proportional to 100,050.80, 150,020.79 and 40,928.00 is: 61,369.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,050.80 : 150,020.79 = 40,928.00 : x
  2. Step 2: Convert to fraction form
    100,050.80/150,020.79 = 40,928.00/x
  3. Step 3: Cross multiply
    100,050.80x = 150,020.79 × 40,928.00
  4. Step 4: Simplify right side
    100,050.80x = 6,140,050,143.02
  5. Step 5: Solve for x
    x = 6,140,050,143.02/100,050.80
  6. Step 6: Final answer
    x = 61,369.33

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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.