Home / 66,464.21-91,613.16-57,828.33

Finding the Fourth Proportional to 66,464.21, 91,613.16 and 57,828.33

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Solution

The fourth proportional to 66,464.21, 91,613.16 and 57,828.33 is: 79,709.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,464.21 : 91,613.16 = 57,828.33 : x
  2. Step 2: Convert to fraction form
    66,464.21/91,613.16 = 57,828.33/x
  3. Step 3: Cross multiply
    66,464.21x = 91,613.16 × 57,828.33
  4. Step 4: Simplify right side
    66,464.21x = 5,297,836,048.82
  5. Step 5: Solve for x
    x = 5,297,836,048.82/66,464.21
  6. Step 6: Final answer
    x = 79,709.60

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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.