Finding the Fourth Proportional to 96,901.32, 133,718.70 and 54,457.08
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Solution
The fourth proportional to 96,901.32, 133,718.70 and 54,457.08 is: 75,147.89
Step by Step Solution
- Step 1: Write the proportion equation
96,901.32 : 133,718.70 = 54,457.08 : x - Step 2: Convert to fraction form
96,901.32/133,718.70 = 54,457.08/x - Step 3: Cross multiply
96,901.32x = 133,718.70 × 54,457.08 - Step 4: Simplify right side
96,901.32x = 7,281,929,943.40 - Step 5: Solve for x
x = 7,281,929,943.40/96,901.32 - Step 6: Final answer
x = 75,147.89
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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.