Finding the Fourth Proportional to 68,013.80, 101,934.09 and 38,448.08
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Solution
The fourth proportional to 68,013.80, 101,934.09 and 38,448.08 is: 57,623.16
Step by Step Solution
- Step 1: Write the proportion equation
68,013.80 : 101,934.09 = 38,448.08 : x - Step 2: Convert to fraction form
68,013.80/101,934.09 = 38,448.08/x - Step 3: Cross multiply
68,013.80x = 101,934.09 × 38,448.08 - Step 4: Simplify right side
68,013.80x = 3,919,170,047.05 - Step 5: Solve for x
x = 3,919,170,047.05/68,013.80 - Step 6: Final answer
x = 57,623.16
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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.