Home / 55,203.66-82,806.86-20,143.32

Finding the Fourth Proportional to 55,203.66, 82,806.86 and 20,143.32

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Solution

The fourth proportional to 55,203.66, 82,806.86 and 20,143.32 is: 30,215.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,203.66 : 82,806.86 = 20,143.32 : x
  2. Step 2: Convert to fraction form
    55,203.66/82,806.86 = 20,143.32/x
  3. Step 3: Cross multiply
    55,203.66x = 82,806.86 × 20,143.32
  4. Step 4: Simplify right side
    55,203.66x = 1,668,005,079.18
  5. Step 5: Solve for x
    x = 1,668,005,079.18/55,203.66
  6. Step 6: Final answer
    x = 30,215.48

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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.