Finding the Fourth Proportional to 89,718.84, 134,461.62 and 39,724.02
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Solution
The fourth proportional to 89,718.84, 134,461.62 and 39,724.02 is: 59,534.39
Step by Step Solution
- Step 1: Write the proportion equation
89,718.84 : 134,461.62 = 39,724.02 : x - Step 2: Convert to fraction form
89,718.84/134,461.62 = 39,724.02/x - Step 3: Cross multiply
89,718.84x = 134,461.62 × 39,724.02 - Step 4: Simplify right side
89,718.84x = 5,341,356,082.11 - Step 5: Solve for x
x = 5,341,356,082.11/89,718.84 - Step 6: Final answer
x = 59,534.39
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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.