Finding the Fourth Proportional to 89,901.46, 124,071.60 and 49,619.08
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Solution
The fourth proportional to 89,901.46, 124,071.60 and 49,619.08 is: 68,478.52
Step by Step Solution
- Step 1: Write the proportion equation
89,901.46 : 124,071.60 = 49,619.08 : x - Step 2: Convert to fraction form
89,901.46/124,071.60 = 49,619.08/x - Step 3: Cross multiply
89,901.46x = 124,071.60 × 49,619.08 - Step 4: Simplify right side
89,901.46x = 6,156,318,646.13 - Step 5: Solve for x
x = 6,156,318,646.13/89,901.46 - Step 6: Final answer
x = 68,478.52
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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.