Finding the Fourth Proportional to 73,902.75, 101,985.93 and 40,368.75
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Solution
The fourth proportional to 73,902.75, 101,985.93 and 40,368.75 is: 55,708.95
Step by Step Solution
- Step 1: Write the proportion equation
73,902.75 : 101,985.93 = 40,368.75 : x - Step 2: Convert to fraction form
73,902.75/101,985.93 = 40,368.75/x - Step 3: Cross multiply
73,902.75x = 101,985.93 × 40,368.75 - Step 4: Simplify right side
73,902.75x = 4,117,044,511.69 - Step 5: Solve for x
x = 4,117,044,511.69/73,902.75 - Step 6: Final answer
x = 55,708.95
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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.