Finding the Fourth Proportional to 91,445.36, 137,026.20 and 63,420.08
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Solution
The fourth proportional to 91,445.36, 137,026.20 and 63,420.08 is: 95,031.75
Step by Step Solution
- Step 1: Write the proportion equation
91,445.36 : 137,026.20 = 63,420.08 : x - Step 2: Convert to fraction form
91,445.36/137,026.20 = 63,420.08/x - Step 3: Cross multiply
91,445.36x = 137,026.20 × 63,420.08 - Step 4: Simplify right side
91,445.36x = 8,690,212,566.10 - Step 5: Solve for x
x = 8,690,212,566.10/91,445.36 - Step 6: Final answer
x = 95,031.75
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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.