Finding the Fourth Proportional to 74,702.39, 103,087.96 and 40,710.67
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Solution
The fourth proportional to 74,702.39, 103,087.96 and 40,710.67 is: 56,179.99
Step by Step Solution
- Step 1: Write the proportion equation
74,702.39 : 103,087.96 = 40,710.67 : x - Step 2: Convert to fraction form
74,702.39/103,087.96 = 40,710.67/x - Step 3: Cross multiply
74,702.39x = 103,087.96 × 40,710.67 - Step 4: Simplify right side
74,702.39x = 4,196,779,561.04 - Step 5: Solve for x
x = 4,196,779,561.04/74,702.39 - Step 6: Final answer
x = 56,179.99
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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.