Finding the Fourth Proportional to 112,972.05, 169,420.95 and 38,072.03
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Solution
The fourth proportional to 112,972.05, 169,420.95 and 38,072.03 is: 57,095.53
Step by Step Solution
- Step 1: Write the proportion equation
112,972.05 : 169,420.95 = 38,072.03 : x - Step 2: Convert to fraction form
112,972.05/169,420.95 = 38,072.03/x - Step 3: Cross multiply
112,972.05x = 169,420.95 × 38,072.03 - Step 4: Simplify right side
112,972.05x = 6,450,198,643.92 - Step 5: Solve for x
x = 6,450,198,643.92/112,972.05 - Step 6: Final answer
x = 57,095.53
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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.