Home / 77,450.76-116,162.20-20,525.04

Finding the Fourth Proportional to 77,450.76, 116,162.20 and 20,525.04

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Solution

The fourth proportional to 77,450.76, 116,162.20 and 20,525.04 is: 30,783.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,450.76 : 116,162.20 = 20,525.04 : x
  2. Step 2: Convert to fraction form
    77,450.76/116,162.20 = 20,525.04/x
  3. Step 3: Cross multiply
    77,450.76x = 116,162.20 × 20,525.04
  4. Step 4: Simplify right side
    77,450.76x = 2,384,233,801.49
  5. Step 5: Solve for x
    x = 2,384,233,801.49/77,450.76
  6. Step 6: Final answer
    x = 30,783.87

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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.