Finding the Fourth Proportional to 74,324.40, 102,567.15 and 40,332.02
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Solution
The fourth proportional to 74,324.40, 102,567.15 and 40,332.02 is: 55,657.90
Step by Step Solution
- Step 1: Write the proportion equation
74,324.40 : 102,567.15 = 40,332.02 : x - Step 2: Convert to fraction form
74,324.40/102,567.15 = 40,332.02/x - Step 3: Cross multiply
74,324.40x = 102,567.15 × 40,332.02 - Step 4: Simplify right side
74,324.40x = 4,136,740,345.14 - Step 5: Solve for x
x = 4,136,740,345.14/74,324.40 - Step 6: Final answer
x = 55,657.90
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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.