Home / 55,121.92-82,685.61-15,681.80

Finding the Fourth Proportional to 55,121.92, 82,685.61 and 15,681.80

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Solution

The fourth proportional to 55,121.92, 82,685.61 and 15,681.80 is: 23,523.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,121.92 : 82,685.61 = 15,681.80 : x
  2. Step 2: Convert to fraction form
    55,121.92/82,685.61 = 15,681.80/x
  3. Step 3: Cross multiply
    55,121.92x = 82,685.61 × 15,681.80
  4. Step 4: Simplify right side
    55,121.92x = 1,296,659,405.61
  5. Step 5: Solve for x
    x = 1,296,659,405.61/55,121.92
  6. Step 6: Final answer
    x = 23,523.48

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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.