Finding the Fourth Proportional to 74,587.84, 102,925.49 and 47,361.92
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Solution
The fourth proportional to 74,587.84, 102,925.49 and 47,361.92 is: 65,355.80
Step by Step Solution
- Step 1: Write the proportion equation
74,587.84 : 102,925.49 = 47,361.92 : x - Step 2: Convert to fraction form
74,587.84/102,925.49 = 47,361.92/x - Step 3: Cross multiply
74,587.84x = 102,925.49 × 47,361.92 - Step 4: Simplify right side
74,587.84x = 4,874,748,071.90 - Step 5: Solve for x
x = 4,874,748,071.90/74,587.84 - Step 6: Final answer
x = 65,355.80
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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.