Finding the Fourth Proportional to 93,861.84, 129,529.80 and 51,420.39
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Solution
The fourth proportional to 93,861.84, 129,529.80 and 51,420.39 is: 70,960.39
Step by Step Solution
- Step 1: Write the proportion equation
93,861.84 : 129,529.80 = 51,420.39 : x - Step 2: Convert to fraction form
93,861.84/129,529.80 = 51,420.39/x - Step 3: Cross multiply
93,861.84x = 129,529.80 × 51,420.39 - Step 4: Simplify right side
93,861.84x = 6,660,472,832.62 - Step 5: Solve for x
x = 6,660,472,832.62/93,861.84 - Step 6: Final answer
x = 70,960.39
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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.