Home / 85,383.12-117,825.84-47,142.03

Finding the Fourth Proportional to 85,383.12, 117,825.84 and 47,142.03

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Solution

The fourth proportional to 85,383.12, 117,825.84 and 47,142.03 is: 65,054.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,383.12 : 117,825.84 = 47,142.03 : x
  2. Step 2: Convert to fraction form
    85,383.12/117,825.84 = 47,142.03/x
  3. Step 3: Cross multiply
    85,383.12x = 117,825.84 × 47,142.03
  4. Step 4: Simplify right side
    85,383.12x = 5,554,549,284.06
  5. Step 5: Solve for x
    x = 5,554,549,284.06/85,383.12
  6. Step 6: Final answer
    x = 65,054.42

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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.