Finding the Fourth Proportional to 83,071.63, 114,666.20 and 66,106.99
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Solution
The fourth proportional to 83,071.63, 114,666.20 and 66,106.99 is: 91,249.41
Step by Step Solution
- Step 1: Write the proportion equation
83,071.63 : 114,666.20 = 66,106.99 : x - Step 2: Convert to fraction form
83,071.63/114,666.20 = 66,106.99/x - Step 3: Cross multiply
83,071.63x = 114,666.20 × 66,106.99 - Step 4: Simplify right side
83,071.63x = 7,580,237,336.74 - Step 5: Solve for x
x = 7,580,237,336.74/83,071.63 - Step 6: Final answer
x = 91,249.41
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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.