Finding the Fourth Proportional to 97,666.24, 134,770.08 and 77,571.76
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Solution
The fourth proportional to 97,666.24, 134,770.08 and 77,571.76 is: 107,041.62
Step by Step Solution
- Step 1: Write the proportion equation
97,666.24 : 134,770.08 = 77,571.76 : x - Step 2: Convert to fraction form
97,666.24/134,770.08 = 77,571.76/x - Step 3: Cross multiply
97,666.24x = 134,770.08 × 77,571.76 - Step 4: Simplify right side
97,666.24x = 10,454,352,300.94 - Step 5: Solve for x
x = 10,454,352,300.94/97,666.24 - Step 6: Final answer
x = 107,041.62
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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.