Finding the Fourth Proportional to 74,967.84, 103,445.63 and 48,146.68
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Solution
The fourth proportional to 74,967.84, 103,445.63 and 48,146.68 is: 66,436.00
Step by Step Solution
- Step 1: Write the proportion equation
74,967.84 : 103,445.63 = 48,146.68 : x - Step 2: Convert to fraction form
74,967.84/103,445.63 = 48,146.68/x - Step 3: Cross multiply
74,967.84x = 103,445.63 × 48,146.68 - Step 4: Simplify right side
74,967.84x = 4,980,563,145.66 - Step 5: Solve for x
x = 4,980,563,145.66/74,967.84 - Step 6: Final answer
x = 66,436.00
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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.