Finding the Fourth Proportional to 74,117.73, 102,281.73 and 40,125.32
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Solution
The fourth proportional to 74,117.73, 102,281.73 and 40,125.32 is: 55,372.54
Step by Step Solution
- Step 1: Write the proportion equation
74,117.73 : 102,281.73 = 40,125.32 : x - Step 2: Convert to fraction form
74,117.73/102,281.73 = 40,125.32/x - Step 3: Cross multiply
74,117.73x = 102,281.73 × 40,125.32 - Step 4: Simplify right side
74,117.73x = 4,104,087,146.40 - Step 5: Solve for x
x = 4,104,087,146.40/74,117.73 - Step 6: Final answer
x = 55,372.54
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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.