Home / 66,090.41-91,240.31-50,949.89

Finding the Fourth Proportional to 66,090.41, 91,240.31 and 50,949.89

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Solution

The fourth proportional to 66,090.41, 91,240.31 and 50,949.89 is: 70,338.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,090.41 : 91,240.31 = 50,949.89 : x
  2. Step 2: Convert to fraction form
    66,090.41/91,240.31 = 50,949.89/x
  3. Step 3: Cross multiply
    66,090.41x = 91,240.31 × 50,949.89
  4. Step 4: Simplify right side
    66,090.41x = 4,648,683,758.07
  5. Step 5: Solve for x
    x = 4,648,683,758.07/66,090.41
  6. Step 6: Final answer
    x = 70,338.25

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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.