Finding the Fourth Proportional to 77,651.92, 107,226.86 and 73,666.08
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Solution
The fourth proportional to 77,651.92, 107,226.86 and 73,666.08 is: 101,722.95
Step by Step Solution
- Step 1: Write the proportion equation
77,651.92 : 107,226.86 = 73,666.08 : x - Step 2: Convert to fraction form
77,651.92/107,226.86 = 73,666.08/x - Step 3: Cross multiply
77,651.92x = 107,226.86 × 73,666.08 - Step 4: Simplify right side
77,651.92x = 7,898,982,446.91 - Step 5: Solve for x
x = 7,898,982,446.91/77,651.92 - Step 6: Final answer
x = 101,722.95
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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.