Home / 50,470.20-75,705.30-20,855.50

Finding the Fourth Proportional to 50,470.20, 75,705.30 and 20,855.50

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Solution

The fourth proportional to 50,470.20, 75,705.30 and 20,855.50 is: 31,283.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    50,470.20 : 75,705.30 = 20,855.50 : x
  2. Step 2: Convert to fraction form
    50,470.20/75,705.30 = 20,855.50/x
  3. Step 3: Cross multiply
    50,470.20x = 75,705.30 × 20,855.50
  4. Step 4: Simplify right side
    50,470.20x = 1,578,871,884.15
  5. Step 5: Solve for x
    x = 1,578,871,884.15/50,470.20
  6. Step 6: Final answer
    x = 31,283.25

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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.