Home / 84,940.08-117,121.01-54,272.66

Finding the Fourth Proportional to 84,940.08, 117,121.01 and 54,272.66

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Solution

The fourth proportional to 84,940.08, 117,121.01 and 54,272.66 is: 74,834.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,940.08 : 117,121.01 = 54,272.66 : x
  2. Step 2: Convert to fraction form
    84,940.08/117,121.01 = 54,272.66/x
  3. Step 3: Cross multiply
    84,940.08x = 117,121.01 × 54,272.66
  4. Step 4: Simplify right side
    84,940.08x = 6,356,467,897.62
  5. Step 5: Solve for x
    x = 6,356,467,897.62/84,940.08
  6. Step 6: Final answer
    x = 74,834.73

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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.