Finding the Fourth Proportional to 74,029.84, 102,161.18 and 40,038.33
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Solution
The fourth proportional to 74,029.84, 102,161.18 and 40,038.33 is: 55,252.90
Step by Step Solution
- Step 1: Write the proportion equation
74,029.84 : 102,161.18 = 40,038.33 : x - Step 2: Convert to fraction form
74,029.84/102,161.18 = 40,038.33/x - Step 3: Cross multiply
74,029.84x = 102,161.18 × 40,038.33 - Step 4: Simplify right side
74,029.84x = 4,090,363,038.03 - Step 5: Solve for x
x = 4,090,363,038.03/74,029.84 - Step 6: Final answer
x = 55,252.90
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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.