Home / 55,200.06-82,812.38-20,139.71

Finding the Fourth Proportional to 55,200.06, 82,812.38 and 20,139.71

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Solution

The fourth proportional to 55,200.06, 82,812.38 and 20,139.71 is: 30,214.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,200.06 : 82,812.38 = 20,139.71 : x
  2. Step 2: Convert to fraction form
    55,200.06/82,812.38 = 20,139.71/x
  3. Step 3: Cross multiply
    55,200.06x = 82,812.38 × 20,139.71
  4. Step 4: Simplify right side
    55,200.06x = 1,667,816,802.85
  5. Step 5: Solve for x
    x = 1,667,816,802.85/55,200.06
  6. Step 6: Final answer
    x = 30,214.04

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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.