Home / 67,579.87-101,384.31-20,198.67

Finding the Fourth Proportional to 67,579.87, 101,384.31 and 20,198.67

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Solution

The fourth proportional to 67,579.87, 101,384.31 and 20,198.67 is: 30,302.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,579.87 : 101,384.31 = 20,198.67 : x
  2. Step 2: Convert to fraction form
    67,579.87/101,384.31 = 20,198.67/x
  3. Step 3: Cross multiply
    67,579.87x = 101,384.31 × 20,198.67
  4. Step 4: Simplify right side
    67,579.87x = 2,047,827,802.80
  5. Step 5: Solve for x
    x = 2,047,827,802.80/67,579.87
  6. Step 6: Final answer
    x = 30,302.33

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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.