Home / 85,175.72-117,466.09-53,347.58

Finding the Fourth Proportional to 85,175.72, 117,466.09 and 53,347.58

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Solution

The fourth proportional to 85,175.72, 117,466.09 and 53,347.58 is: 73,571.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,175.72 : 117,466.09 = 53,347.58 : x
  2. Step 2: Convert to fraction form
    85,175.72/117,466.09 = 53,347.58/x
  3. Step 3: Cross multiply
    85,175.72x = 117,466.09 × 53,347.58
  4. Step 4: Simplify right side
    85,175.72x = 6,266,531,633.56
  5. Step 5: Solve for x
    x = 6,266,531,633.56/85,175.72
  6. Step 6: Final answer
    x = 73,571.81

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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.