Home / 84,868.62-117,022.06-54,200.40

Finding the Fourth Proportional to 84,868.62, 117,022.06 and 54,200.40

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Solution

The fourth proportional to 84,868.62, 117,022.06 and 54,200.40 is: 74,734.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,868.62 : 117,022.06 = 54,200.40 : x
  2. Step 2: Convert to fraction form
    84,868.62/117,022.06 = 54,200.40/x
  3. Step 3: Cross multiply
    84,868.62x = 117,022.06 × 54,200.40
  4. Step 4: Simplify right side
    84,868.62x = 6,342,642,460.82
  5. Step 5: Solve for x
    x = 6,342,642,460.82/84,868.62
  6. Step 6: Final answer
    x = 74,734.84

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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.