Finding the Fourth Proportional to 91,590.93, 126,438.78 and 61,395.99
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Solution
The fourth proportional to 91,590.93, 126,438.78 and 61,395.99 is: 84,755.49
Step by Step Solution
- Step 1: Write the proportion equation
91,590.93 : 126,438.78 = 61,395.99 : x - Step 2: Convert to fraction form
91,590.93/126,438.78 = 61,395.99/x - Step 3: Cross multiply
91,590.93x = 126,438.78 × 61,395.99 - Step 4: Simplify right side
91,590.93x = 7,762,834,072.49 - Step 5: Solve for x
x = 7,762,834,072.49/91,590.93 - Step 6: Final answer
x = 84,755.49
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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.