Home / 50,019.20-74,985.60-30,276.80

Finding the Fourth Proportional to 50,019.20, 74,985.60 and 30,276.80

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Solution

The fourth proportional to 50,019.20, 74,985.60 and 30,276.80 is: 45,389.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    50,019.20 : 74,985.60 = 30,276.80 : x
  2. Step 2: Convert to fraction form
    50,019.20/74,985.60 = 30,276.80/x
  3. Step 3: Cross multiply
    50,019.20x = 74,985.60 × 30,276.80
  4. Step 4: Simplify right side
    50,019.20x = 2,270,324,014.08
  5. Step 5: Solve for x
    x = 2,270,324,014.08/50,019.20
  6. Step 6: Final answer
    x = 45,389.05

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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.