Home / 78,191.25-117,268.84-46,610.20

Finding the Fourth Proportional to 78,191.25, 117,268.84 and 46,610.20

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Solution

The fourth proportional to 78,191.25, 117,268.84 and 46,610.20 is: 69,904.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,191.25 : 117,268.84 = 46,610.20 : x
  2. Step 2: Convert to fraction form
    78,191.25/117,268.84 = 46,610.20/x
  3. Step 3: Cross multiply
    78,191.25x = 117,268.84 × 46,610.20
  4. Step 4: Simplify right side
    78,191.25x = 5,465,924,086.17
  5. Step 5: Solve for x
    x = 5,465,924,086.17/78,191.25
  6. Step 6: Final answer
    x = 69,904.55

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.