Finding the Fourth Proportional to 85,458.80, 117,930.84 and 46,695.08
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Solution
The fourth proportional to 85,458.80, 117,930.84 and 46,695.08 is: 64,437.95
Step by Step Solution
- Step 1: Write the proportion equation
85,458.80 : 117,930.84 = 46,695.08 : x - Step 2: Convert to fraction form
85,458.80/117,930.84 = 46,695.08/x - Step 3: Cross multiply
85,458.80x = 117,930.84 × 46,695.08 - Step 4: Simplify right side
85,458.80x = 5,506,790,008.27 - Step 5: Solve for x
x = 5,506,790,008.27/85,458.80 - Step 6: Final answer
x = 64,437.95
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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.