Finding the Fourth Proportional to 70,981.08, 106,463.34 and 18,386.52
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Solution
The fourth proportional to 70,981.08, 106,463.34 and 18,386.52 is: 27,577.64
Step by Step Solution
- Step 1: Write the proportion equation
70,981.08 : 106,463.34 = 18,386.52 : x - Step 2: Convert to fraction form
70,981.08/106,463.34 = 18,386.52/x - Step 3: Cross multiply
70,981.08x = 106,463.34 × 18,386.52 - Step 4: Simplify right side
70,981.08x = 1,957,490,330.18 - Step 5: Solve for x
x = 1,957,490,330.18/70,981.08 - Step 6: Final answer
x = 27,577.64
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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.