Home / 55,121.55-82,682.77-17,681.67

Finding the Fourth Proportional to 55,121.55, 82,682.77 and 17,681.67

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Solution

The fourth proportional to 55,121.55, 82,682.77 and 17,681.67 is: 26,522.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,121.55 : 82,682.77 = 17,681.67 : x
  2. Step 2: Convert to fraction form
    55,121.55/82,682.77 = 17,681.67/x
  3. Step 3: Cross multiply
    55,121.55x = 82,682.77 × 17,681.67
  4. Step 4: Simplify right side
    55,121.55x = 1,461,969,453.83
  5. Step 5: Solve for x
    x = 1,461,969,453.83/55,121.55
  6. Step 6: Final answer
    x = 26,522.65

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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.