Home / 55,156.37-82,718.10-20,087.82

Finding the Fourth Proportional to 55,156.37, 82,718.10 and 20,087.82

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Solution

The fourth proportional to 55,156.37, 82,718.10 and 20,087.82 is: 30,125.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,156.37 : 82,718.10 = 20,087.82 : x
  2. Step 2: Convert to fraction form
    55,156.37/82,718.10 = 20,087.82/x
  3. Step 3: Cross multiply
    55,156.37x = 82,718.10 × 20,087.82
  4. Step 4: Simplify right side
    55,156.37x = 1,661,626,303.54
  5. Step 5: Solve for x
    x = 1,661,626,303.54/55,156.37
  6. Step 6: Final answer
    x = 30,125.74

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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.