Home / 84,971.88-117,229.86-51,425.64

Finding the Fourth Proportional to 84,971.88, 117,229.86 and 51,425.64

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Solution

The fourth proportional to 84,971.88, 117,229.86 and 51,425.64 is: 70,948.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,971.88 : 117,229.86 = 51,425.64 : x
  2. Step 2: Convert to fraction form
    84,971.88/117,229.86 = 51,425.64/x
  3. Step 3: Cross multiply
    84,971.88x = 117,229.86 × 51,425.64
  4. Step 4: Simplify right side
    84,971.88x = 6,028,620,577.61
  5. Step 5: Solve for x
    x = 6,028,620,577.61/84,971.88
  6. Step 6: Final answer
    x = 70,948.42

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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.