Finding the Fourth Proportional to 74,663.62, 112,012.01 and 27,278.62
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Solution
The fourth proportional to 74,663.62, 112,012.01 and 27,278.62 is: 40,923.99
Step by Step Solution
- Step 1: Write the proportion equation
74,663.62 : 112,012.01 = 27,278.62 : x - Step 2: Convert to fraction form
74,663.62/112,012.01 = 27,278.62/x - Step 3: Cross multiply
74,663.62x = 112,012.01 × 27,278.62 - Step 4: Simplify right side
74,663.62x = 3,055,533,056.23 - Step 5: Solve for x
x = 3,055,533,056.23/74,663.62 - Step 6: Final answer
x = 40,923.99
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.