Finding the Fourth Proportional to 74,929.62, 103,417.38 and 48,106.02
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Solution
The fourth proportional to 74,929.62, 103,417.38 and 48,106.02 is: 66,395.62
Step by Step Solution
- Step 1: Write the proportion equation
74,929.62 : 103,417.38 = 48,106.02 : x - Step 2: Convert to fraction form
74,929.62/103,417.38 = 48,106.02/x - Step 3: Cross multiply
74,929.62x = 103,417.38 × 48,106.02 - Step 4: Simplify right side
74,929.62x = 4,974,998,550.63 - Step 5: Solve for x
x = 4,974,998,550.63/74,929.62 - Step 6: Final answer
x = 66,395.62
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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.