Home / 85,279.03-117,706.16-58,100.09

Finding the Fourth Proportional to 85,279.03, 117,706.16 and 58,100.09

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Solution

The fourth proportional to 85,279.03, 117,706.16 and 58,100.09 is: 80,192.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,279.03 : 117,706.16 = 58,100.09 : x
  2. Step 2: Convert to fraction form
    85,279.03/117,706.16 = 58,100.09/x
  3. Step 3: Cross multiply
    85,279.03x = 117,706.16 × 58,100.09
  4. Step 4: Simplify right side
    85,279.03x = 6,838,738,046.27
  5. Step 5: Solve for x
    x = 6,838,738,046.27/85,279.03
  6. Step 6: Final answer
    x = 80,192.50

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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.