Finding the Fourth Proportional to 74,394.06, 102,664.53 and 40,860.06
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Solution
The fourth proportional to 74,394.06, 102,664.53 and 40,860.06 is: 56,387.28
Step by Step Solution
- Step 1: Write the proportion equation
74,394.06 : 102,664.53 = 40,860.06 : x - Step 2: Convert to fraction form
74,394.06/102,664.53 = 40,860.06/x - Step 3: Cross multiply
74,394.06x = 102,664.53 × 40,860.06 - Step 4: Simplify right side
74,394.06x = 4,194,878,855.67 - Step 5: Solve for x
x = 4,194,878,855.67/74,394.06 - Step 6: Final answer
x = 56,387.28
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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.