Finding the Fourth Proportional to 85,820.63, 128,713.35 and 32,494.21
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Solution
The fourth proportional to 85,820.63, 128,713.35 and 32,494.21 is: 48,734.65
Step by Step Solution
- Step 1: Write the proportion equation
85,820.63 : 128,713.35 = 32,494.21 : x - Step 2: Convert to fraction form
85,820.63/128,713.35 = 32,494.21/x - Step 3: Cross multiply
85,820.63x = 128,713.35 × 32,494.21 - Step 4: Simplify right side
85,820.63x = 4,182,438,301.74 - Step 5: Solve for x
x = 4,182,438,301.74/85,820.63 - Step 6: Final answer
x = 48,734.65
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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.