Home / 55,207.77-82,836.27-20,139.23

Finding the Fourth Proportional to 55,207.77, 82,836.27 and 20,139.23

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Solution

The fourth proportional to 55,207.77, 82,836.27 and 20,139.23 is: 30,217.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,207.77 : 82,836.27 = 20,139.23 : x
  2. Step 2: Convert to fraction form
    55,207.77/82,836.27 = 20,139.23/x
  3. Step 3: Cross multiply
    55,207.77x = 82,836.27 × 20,139.23
  4. Step 4: Simplify right side
    55,207.77x = 1,668,258,279.69
  5. Step 5: Solve for x
    x = 1,668,258,279.69/55,207.77
  6. Step 6: Final answer
    x = 30,217.82

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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.