Home / 91,375.44-137,019.70-53,435.55

Finding the Fourth Proportional to 91,375.44, 137,019.70 and 53,435.55

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Solution

The fourth proportional to 91,375.44, 137,019.70 and 53,435.55 is: 80,127.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,375.44 : 137,019.70 = 53,435.55 : x
  2. Step 2: Convert to fraction form
    91,375.44/137,019.70 = 53,435.55/x
  3. Step 3: Cross multiply
    91,375.44x = 137,019.70 × 53,435.55
  4. Step 4: Simplify right side
    91,375.44x = 7,321,722,840.22
  5. Step 5: Solve for x
    x = 7,321,722,840.22/91,375.44
  6. Step 6: Final answer
    x = 80,127.91

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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.