Finding the Fourth Proportional to 81,130.17, 121,706.78 and 24,974.96
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Solution
The fourth proportional to 81,130.17, 121,706.78 and 24,974.96 is: 37,465.99
Step by Step Solution
- Step 1: Write the proportion equation
81,130.17 : 121,706.78 = 24,974.96 : x - Step 2: Convert to fraction form
81,130.17/121,706.78 = 24,974.96/x - Step 3: Cross multiply
81,130.17x = 121,706.78 × 24,974.96 - Step 4: Simplify right side
81,130.17x = 3,039,621,962.23 - Step 5: Solve for x
x = 3,039,621,962.23/81,130.17 - Step 6: Final answer
x = 37,465.99
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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.