Home / 71,040.99-106,560.56-20,441.34

Finding the Fourth Proportional to 71,040.99, 106,560.56 and 20,441.34

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Solution

The fourth proportional to 71,040.99, 106,560.56 and 20,441.34 is: 30,661.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,040.99 : 106,560.56 = 20,441.34 : x
  2. Step 2: Convert to fraction form
    71,040.99/106,560.56 = 20,441.34/x
  3. Step 3: Cross multiply
    71,040.99x = 106,560.56 × 20,441.34
  4. Step 4: Simplify right side
    71,040.99x = 2,178,240,688.65
  5. Step 5: Solve for x
    x = 2,178,240,688.65/71,040.99
  6. Step 6: Final answer
    x = 30,661.74

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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.