Finding the Fourth Proportional to 85,306.86, 117,730.14 and 47,073.99
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Solution
The fourth proportional to 85,306.86, 117,730.14 and 47,073.99 is: 64,965.79
Step by Step Solution
- Step 1: Write the proportion equation
85,306.86 : 117,730.14 = 47,073.99 : x - Step 2: Convert to fraction form
85,306.86/117,730.14 = 47,073.99/x - Step 3: Cross multiply
85,306.86x = 117,730.14 × 47,073.99 - Step 4: Simplify right side
85,306.86x = 5,542,027,433.06 - Step 5: Solve for x
x = 5,542,027,433.06/85,306.86 - Step 6: Final answer
x = 64,965.79
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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.