Finding the Fourth Proportional to 96,994.49, 133,846.70 and 53,972.55
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Solution
The fourth proportional to 96,994.49, 133,846.70 and 53,972.55 is: 74,478.95
Step by Step Solution
- Step 1: Write the proportion equation
96,994.49 : 133,846.70 = 53,972.55 : x - Step 2: Convert to fraction form
96,994.49/133,846.70 = 53,972.55/x - Step 3: Cross multiply
96,994.49x = 133,846.70 × 53,972.55 - Step 4: Simplify right side
96,994.49x = 7,224,047,438.22 - Step 5: Solve for x
x = 7,224,047,438.22/96,994.49 - Step 6: Final answer
x = 74,478.95
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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.