Finding the Fourth Proportional to 74,731.84, 112,078.62 and 22,129.02
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Solution
The fourth proportional to 74,731.84, 112,078.62 and 22,129.02 is: 33,187.87
Step by Step Solution
- Step 1: Write the proportion equation
74,731.84 : 112,078.62 = 22,129.02 : x - Step 2: Convert to fraction form
74,731.84/112,078.62 = 22,129.02/x - Step 3: Cross multiply
74,731.84x = 112,078.62 × 22,129.02 - Step 4: Simplify right side
74,731.84x = 2,480,190,432.13 - Step 5: Solve for x
x = 2,480,190,432.13/74,731.84 - Step 6: Final answer
x = 33,187.87
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.