Finding the Fourth Proportional to 97,724.92, 134,863.70 and 57,438.10
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Solution
The fourth proportional to 97,724.92, 134,863.70 and 57,438.10 is: 79,266.52
Step by Step Solution
- Step 1: Write the proportion equation
97,724.92 : 134,863.70 = 57,438.10 : x - Step 2: Convert to fraction form
97,724.92/134,863.70 = 57,438.10/x - Step 3: Cross multiply
97,724.92x = 134,863.70 × 57,438.10 - Step 4: Simplify right side
97,724.92x = 7,746,314,686.97 - Step 5: Solve for x
x = 7,746,314,686.97/97,724.92 - Step 6: Final answer
x = 79,266.52
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.