Finding the Fourth Proportional to 85,437.18, 117,899.55 and 47,710.62
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Solution
The fourth proportional to 85,437.18, 117,899.55 and 47,710.62 is: 65,838.56
Step by Step Solution
- Step 1: Write the proportion equation
85,437.18 : 117,899.55 = 47,710.62 : x - Step 2: Convert to fraction form
85,437.18/117,899.55 = 47,710.62/x - Step 3: Cross multiply
85,437.18x = 117,899.55 × 47,710.62 - Step 4: Simplify right side
85,437.18x = 5,625,060,628.22 - Step 5: Solve for x
x = 5,625,060,628.22/85,437.18 - Step 6: Final answer
x = 65,838.56
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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.