Home / 50,119.50-75,120.93-20,501.45

Finding the Fourth Proportional to 50,119.50, 75,120.93 and 20,501.45

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Solution

The fourth proportional to 50,119.50, 75,120.93 and 20,501.45 is: 30,728.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    50,119.50 : 75,120.93 = 20,501.45 : x
  2. Step 2: Convert to fraction form
    50,119.50/75,120.93 = 20,501.45/x
  3. Step 3: Cross multiply
    50,119.50x = 75,120.93 × 20,501.45
  4. Step 4: Simplify right side
    50,119.50x = 1,540,087,614.74
  5. Step 5: Solve for x
    x = 1,540,087,614.74/50,119.50
  6. Step 6: Final answer
    x = 30,728.31

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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.