Finding the Fourth Proportional to 96,939.18, 133,774.28 and 53,918.46
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Solution
The fourth proportional to 96,939.18, 133,774.28 and 53,918.46 is: 74,406.48
Step by Step Solution
- Step 1: Write the proportion equation
96,939.18 : 133,774.28 = 53,918.46 : x - Step 2: Convert to fraction form
96,939.18/133,774.28 = 53,918.46/x - Step 3: Cross multiply
96,939.18x = 133,774.28 × 53,918.46 - Step 4: Simplify right side
96,939.18x = 7,212,903,165.21 - Step 5: Solve for x
x = 7,212,903,165.21/96,939.18 - Step 6: Final answer
x = 74,406.48
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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.