Finding the Fourth Proportional to 74,328.74, 102,573.94 and 40,337.23
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Solution
The fourth proportional to 74,328.74, 102,573.94 and 40,337.23 is: 55,665.52
Step by Step Solution
- Step 1: Write the proportion equation
74,328.74 : 102,573.94 = 40,337.23 : x - Step 2: Convert to fraction form
74,328.74/102,573.94 = 40,337.23/x - Step 3: Cross multiply
74,328.74x = 102,573.94 × 40,337.23 - Step 4: Simplify right side
74,328.74x = 4,137,547,996.07 - Step 5: Solve for x
x = 4,137,547,996.07/74,328.74 - Step 6: Final answer
x = 55,665.52
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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.