Home / 50,580.81-75,905.06-20,998.67

Finding the Fourth Proportional to 50,580.81, 75,905.06 and 20,998.67

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Solution

The fourth proportional to 50,580.81, 75,905.06 and 20,998.67 is: 31,512.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    50,580.81 : 75,905.06 = 20,998.67 : x
  2. Step 2: Convert to fraction form
    50,580.81/75,905.06 = 20,998.67/x
  3. Step 3: Cross multiply
    50,580.81x = 75,905.06 × 20,998.67
  4. Step 4: Simplify right side
    50,580.81x = 1,593,904,821.75
  5. Step 5: Solve for x
    x = 1,593,904,821.75/50,580.81
  6. Step 6: Final answer
    x = 31,512.05

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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.