Finding the Fourth Proportional to 93,989.09, 129,692.99 and 53,705.46
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Solution
The fourth proportional to 93,989.09, 129,692.99 and 53,705.46 is: 74,106.70
Step by Step Solution
- Step 1: Write the proportion equation
93,989.09 : 129,692.99 = 53,705.46 : x - Step 2: Convert to fraction form
93,989.09/129,692.99 = 53,705.46/x - Step 3: Cross multiply
93,989.09x = 129,692.99 × 53,705.46 - Step 4: Simplify right side
93,989.09x = 6,965,221,228.23 - Step 5: Solve for x
x = 6,965,221,228.23/93,989.09 - Step 6: Final answer
x = 74,106.70
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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.