Finding the Fourth Proportional to 74,298.06, 102,531.78 and 40,306.68
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Solution
The fourth proportional to 74,298.06, 102,531.78 and 40,306.68 is: 55,623.47
Step by Step Solution
- Step 1: Write the proportion equation
74,298.06 : 102,531.78 = 40,306.68 : x - Step 2: Convert to fraction form
74,298.06/102,531.78 = 40,306.68/x - Step 3: Cross multiply
74,298.06x = 102,531.78 × 40,306.68 - Step 4: Simplify right side
74,298.06x = 4,132,715,646.29 - Step 5: Solve for x
x = 4,132,715,646.29/74,298.06 - Step 6: Final answer
x = 55,623.47
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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.