Home / 55,210.05-82,816.43-20,149.70

Finding the Fourth Proportional to 55,210.05, 82,816.43 and 20,149.70

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Solution

The fourth proportional to 55,210.05, 82,816.43 and 20,149.70 is: 30,225.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,210.05 : 82,816.43 = 20,149.70 : x
  2. Step 2: Convert to fraction form
    55,210.05/82,816.43 = 20,149.70/x
  3. Step 3: Cross multiply
    55,210.05x = 82,816.43 × 20,149.70
  4. Step 4: Simplify right side
    55,210.05x = 1,668,726,219.57
  5. Step 5: Solve for x
    x = 1,668,726,219.57/55,210.05
  6. Step 6: Final answer
    x = 30,225.04

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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.