Finding the Fourth Proportional to 74,864.23, 112,394.76 and 68,675.02
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Solution
The fourth proportional to 74,864.23, 112,394.76 and 68,675.02 is: 103,102.81
Step by Step Solution
- Step 1: Write the proportion equation
74,864.23 : 112,394.76 = 68,675.02 : x - Step 2: Convert to fraction form
74,864.23/112,394.76 = 68,675.02/x - Step 3: Cross multiply
74,864.23x = 112,394.76 × 68,675.02 - Step 4: Simplify right side
74,864.23x = 7,718,711,852.38 - Step 5: Solve for x
x = 7,718,711,852.38/74,864.23 - Step 6: Final answer
x = 103,102.81
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.