Finding the Fourth Proportional to 74,502.98, 102,813.55 and 40,511.48
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Solution
The fourth proportional to 74,502.98, 102,813.55 and 40,511.48 is: 55,905.54
Step by Step Solution
- Step 1: Write the proportion equation
74,502.98 : 102,813.55 = 40,511.48 : x - Step 2: Convert to fraction form
74,502.98/102,813.55 = 40,511.48/x - Step 3: Cross multiply
74,502.98x = 102,813.55 × 40,511.48 - Step 4: Simplify right side
74,502.98x = 4,165,129,382.23 - Step 5: Solve for x
x = 4,165,129,382.23/74,502.98 - Step 6: Final answer
x = 55,905.54
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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.