Finding the Fourth Proportional to 96,445.55, 133,021.80 and 84,488.13
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Solution
The fourth proportional to 96,445.55, 133,021.80 and 84,488.13 is: 116,529.62
Step by Step Solution
- Step 1: Write the proportion equation
96,445.55 : 133,021.80 = 84,488.13 : x - Step 2: Convert to fraction form
96,445.55/133,021.80 = 84,488.13/x - Step 3: Cross multiply
96,445.55x = 133,021.80 × 84,488.13 - Step 4: Simplify right side
96,445.55x = 11,238,763,131.23 - Step 5: Solve for x
x = 11,238,763,131.23/96,445.55 - Step 6: Final answer
x = 116,529.62
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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.