Finding the Fourth Proportional to 91,476.80, 137,225.28 and 29,132.96
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Solution
The fourth proportional to 91,476.80, 137,225.28 and 29,132.96 is: 43,702.65
Step by Step Solution
- Step 1: Write the proportion equation
91,476.80 : 137,225.28 = 29,132.96 : x - Step 2: Convert to fraction form
91,476.80/137,225.28 = 29,132.96/x - Step 3: Cross multiply
91,476.80x = 137,225.28 × 29,132.96 - Step 4: Simplify right side
91,476.80x = 3,997,778,593.23 - Step 5: Solve for x
x = 3,997,778,593.23/91,476.80 - Step 6: Final answer
x = 43,702.65
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.