Finding the Fourth Proportional to 74,387.06, 102,603.19 and 47,517.63
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Solution
The fourth proportional to 74,387.06, 102,603.19 and 47,517.63 is: 65,541.78
Step by Step Solution
- Step 1: Write the proportion equation
74,387.06 : 102,603.19 = 47,517.63 : x - Step 2: Convert to fraction form
74,387.06/102,603.19 = 47,517.63/x - Step 3: Cross multiply
74,387.06x = 102,603.19 × 47,517.63 - Step 4: Simplify right side
74,387.06x = 4,875,460,181.65 - Step 5: Solve for x
x = 4,875,460,181.65/74,387.06 - Step 6: Final answer
x = 65,541.78
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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.