Home / 51,611.06-71,223.39-30,115.60

Finding the Fourth Proportional to 51,611.06, 71,223.39 and 30,115.60

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Solution

The fourth proportional to 51,611.06, 71,223.39 and 30,115.60 is: 41,559.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,611.06 : 71,223.39 = 30,115.60 : x
  2. Step 2: Convert to fraction form
    51,611.06/71,223.39 = 30,115.60/x
  3. Step 3: Cross multiply
    51,611.06x = 71,223.39 × 30,115.60
  4. Step 4: Simplify right side
    51,611.06x = 2,144,934,945.83
  5. Step 5: Solve for x
    x = 2,144,934,945.83/51,611.06
  6. Step 6: Final answer
    x = 41,559.60

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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.