Finding the Fourth Proportional to 77,230.77, 106,523.49 and 70,877.88
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Solution
The fourth proportional to 77,230.77, 106,523.49 and 70,877.88 is: 97,761.02
Step by Step Solution
- Step 1: Write the proportion equation
77,230.77 : 106,523.49 = 70,877.88 : x - Step 2: Convert to fraction form
77,230.77/106,523.49 = 70,877.88/x - Step 3: Cross multiply
77,230.77x = 106,523.49 × 70,877.88 - Step 4: Simplify right side
77,230.77x = 7,550,159,141.40 - Step 5: Solve for x
x = 7,550,159,141.40/77,230.77 - Step 6: Final answer
x = 97,761.02
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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.