Finding the Fourth Proportional to 74,590.08, 102,933.36 and 55,555.08
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Solution
The fourth proportional to 74,590.08, 102,933.36 and 55,555.08 is: 76,665.30
Step by Step Solution
- Step 1: Write the proportion equation
74,590.08 : 102,933.36 = 55,555.08 : x - Step 2: Convert to fraction form
74,590.08/102,933.36 = 55,555.08/x - Step 3: Cross multiply
74,590.08x = 102,933.36 × 55,555.08 - Step 4: Simplify right side
74,590.08x = 5,718,471,049.47 - Step 5: Solve for x
x = 5,718,471,049.47/74,590.08 - Step 6: Final answer
x = 76,665.30
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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.