Finding the Fourth Proportional to 102,551.92, 141,521.68 and 56,611.59
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Solution
The fourth proportional to 102,551.92, 141,521.68 and 56,611.59 is: 78,124.01
Step by Step Solution
- Step 1: Write the proportion equation
102,551.92 : 141,521.68 = 56,611.59 : x - Step 2: Convert to fraction form
102,551.92/141,521.68 = 56,611.59/x - Step 3: Cross multiply
102,551.92x = 141,521.68 × 56,611.59 - Step 4: Simplify right side
102,551.92x = 8,011,767,324.27 - Step 5: Solve for x
x = 8,011,767,324.27/102,551.92 - Step 6: Final answer
x = 78,124.01
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1.5x scale
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.