Finding the Fourth Proportional to 96,742.55, 133,502.99 and 53,722.14
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Solution
The fourth proportional to 96,742.55, 133,502.99 and 53,722.14 is: 74,135.58
Step by Step Solution
- Step 1: Write the proportion equation
96,742.55 : 133,502.99 = 53,722.14 : x - Step 2: Convert to fraction form
96,742.55/133,502.99 = 53,722.14/x - Step 3: Cross multiply
96,742.55x = 133,502.99 × 53,722.14 - Step 4: Simplify right side
96,742.55x = 7,172,065,549.95 - Step 5: Solve for x
x = 7,172,065,549.95/96,742.55 - Step 6: Final answer
x = 74,135.58
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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.