Finding the Fourth Proportional to 97,790.68, 134,953.05 and 63,820.90
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Solution
The fourth proportional to 97,790.68, 134,953.05 and 63,820.90 is: 88,074.09
Step by Step Solution
- Step 1: Write the proportion equation
97,790.68 : 134,953.05 = 63,820.90 : x - Step 2: Convert to fraction form
97,790.68/134,953.05 = 63,820.90/x - Step 3: Cross multiply
97,790.68x = 134,953.05 × 63,820.90 - Step 4: Simplify right side
97,790.68x = 8,612,825,108.75 - Step 5: Solve for x
x = 8,612,825,108.75/97,790.68 - Step 6: Final answer
x = 88,074.09
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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.