Home / 84,930.40-117,186.88-49,107.36

Finding the Fourth Proportional to 84,930.40, 117,186.88 and 49,107.36

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Solution

The fourth proportional to 84,930.40, 117,186.88 and 49,107.36 is: 67,758.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,930.40 : 117,186.88 = 49,107.36 : x
  2. Step 2: Convert to fraction form
    84,930.40/117,186.88 = 49,107.36/x
  3. Step 3: Cross multiply
    84,930.40x = 117,186.88 × 49,107.36
  4. Step 4: Simplify right side
    84,930.40x = 5,754,738,303.44
  5. Step 5: Solve for x
    x = 5,754,738,303.44/84,930.40
  6. Step 6: Final answer
    x = 67,758.29

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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.