Finding the Fourth Proportional to 115,530.98, 159,416.98 and 64,537.41
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Solution
The fourth proportional to 115,530.98, 159,416.98 and 64,537.41 is: 89,052.82
Step by Step Solution
- Step 1: Write the proportion equation
115,530.98 : 159,416.98 = 64,537.41 : x - Step 2: Convert to fraction form
115,530.98/159,416.98 = 64,537.41/x - Step 3: Cross multiply
115,530.98x = 159,416.98 × 64,537.41 - Step 4: Simplify right side
115,530.98x = 10,288,358,999.22 - Step 5: Solve for x
x = 10,288,358,999.22/115,530.98 - Step 6: Final answer
x = 89,052.82
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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.