Finding the Fourth Proportional to 88,318.62, 121,914.99 and 54,341.01
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Solution
The fourth proportional to 88,318.62, 121,914.99 and 54,341.01 is: 75,012.31
Step by Step Solution
- Step 1: Write the proportion equation
88,318.62 : 121,914.99 = 54,341.01 : x - Step 2: Convert to fraction form
88,318.62/121,914.99 = 54,341.01/x - Step 3: Cross multiply
88,318.62x = 121,914.99 × 54,341.01 - Step 4: Simplify right side
88,318.62x = 6,624,983,690.74 - Step 5: Solve for x
x = 6,624,983,690.74/88,318.62 - Step 6: Final answer
x = 75,012.31
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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.