Home / 51,617.07-71,231.67-30,121.59

Finding the Fourth Proportional to 51,617.07, 71,231.67 and 30,121.59

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Solution

The fourth proportional to 51,617.07, 71,231.67 and 30,121.59 is: 41,567.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,617.07 : 71,231.67 = 30,121.59 : x
  2. Step 2: Convert to fraction form
    51,617.07/71,231.67 = 30,121.59/x
  3. Step 3: Cross multiply
    51,617.07x = 71,231.67 × 30,121.59
  4. Step 4: Simplify right side
    51,617.07x = 2,145,611,158.76
  5. Step 5: Solve for x
    x = 2,145,611,158.76/51,617.07
  6. Step 6: Final answer
    x = 41,567.86

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.