Finding the Fourth Proportional to 74,345.18, 102,593.58 and 40,352.94
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Solution
The fourth proportional to 74,345.18, 102,593.58 and 40,352.94 is: 55,685.55
Step by Step Solution
- Step 1: Write the proportion equation
74,345.18 : 102,593.58 = 40,352.94 : x - Step 2: Convert to fraction form
74,345.18/102,593.58 = 40,352.94/x - Step 3: Cross multiply
74,345.18x = 102,593.58 × 40,352.94 - Step 4: Simplify right side
74,345.18x = 4,139,952,578.13 - Step 5: Solve for x
x = 4,139,952,578.13/74,345.18 - Step 6: Final answer
x = 55,685.55
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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.