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Finding the Fourth Proportional to 84,345.68, 126,674.04 and 66,927.44

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Solution

The fourth proportional to 84,345.68, 126,674.04 and 66,927.44 is: 100,514.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,345.68 : 126,674.04 = 66,927.44 : x
  2. Step 2: Convert to fraction form
    84,345.68/126,674.04 = 66,927.44/x
  3. Step 3: Cross multiply
    84,345.68x = 126,674.04 × 66,927.44
  4. Step 4: Simplify right side
    84,345.68x = 8,477,969,211.66
  5. Step 5: Solve for x
    x = 8,477,969,211.66/84,345.68
  6. Step 6: Final answer
    x = 100,514.56

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.