Home / 55,206.04-82,810.43-20,145.69

Finding the Fourth Proportional to 55,206.04, 82,810.43 and 20,145.69

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Solution

The fourth proportional to 55,206.04, 82,810.43 and 20,145.69 is: 30,219.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,206.04 : 82,810.43 = 20,145.69 : x
  2. Step 2: Convert to fraction form
    55,206.04/82,810.43 = 20,145.69/x
  3. Step 3: Cross multiply
    55,206.04x = 82,810.43 × 20,145.69
  4. Step 4: Simplify right side
    55,206.04x = 1,668,273,251.55
  5. Step 5: Solve for x
    x = 1,668,273,251.55/55,206.04
  6. Step 6: Final answer
    x = 30,219.03

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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.