Home / 85,072.09-117,399.49-47,355.25

Finding the Fourth Proportional to 85,072.09, 117,399.49 and 47,355.25

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Solution

The fourth proportional to 85,072.09, 117,399.49 and 47,355.25 is: 65,350.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,072.09 : 117,399.49 = 47,355.25 : x
  2. Step 2: Convert to fraction form
    85,072.09/117,399.49 = 47,355.25/x
  3. Step 3: Cross multiply
    85,072.09x = 117,399.49 × 47,355.25
  4. Step 4: Simplify right side
    85,072.09x = 5,559,482,198.82
  5. Step 5: Solve for x
    x = 5,559,482,198.82/85,072.09
  6. Step 6: Final answer
    x = 65,350.25

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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.