Finding the Fourth Proportional to 98,853.99, 136,417.73 and 53,531.82
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Solution
The fourth proportional to 98,853.99, 136,417.73 and 53,531.82 is: 73,873.49
Step by Step Solution
- Step 1: Write the proportion equation
98,853.99 : 136,417.73 = 53,531.82 : x - Step 2: Convert to fraction form
98,853.99/136,417.73 = 53,531.82/x - Step 3: Cross multiply
98,853.99x = 136,417.73 × 53,531.82 - Step 4: Simplify right side
98,853.99x = 7,302,689,099.51 - Step 5: Solve for x
x = 7,302,689,099.51/98,853.99 - Step 6: Final answer
x = 73,873.49
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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.