Finding the Fourth Proportional to 77,293.77, 106,612.05 and 54,372.19
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Solution
The fourth proportional to 77,293.77, 106,612.05 and 54,372.19 is: 74,996.09
Step by Step Solution
- Step 1: Write the proportion equation
77,293.77 : 106,612.05 = 54,372.19 : x - Step 2: Convert to fraction form
77,293.77/106,612.05 = 54,372.19/x - Step 3: Cross multiply
77,293.77x = 106,612.05 × 54,372.19 - Step 4: Simplify right side
77,293.77x = 5,796,730,638.89 - Step 5: Solve for x
x = 5,796,730,638.89/77,293.77 - Step 6: Final answer
x = 74,996.09
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1.5x scale
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.