Finding the Fourth Proportional to 86,854.05, 119,860.74 and 48,613.28
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Solution
The fourth proportional to 86,854.05, 119,860.74 and 48,613.28 is: 67,087.52
Step by Step Solution
- Step 1: Write the proportion equation
86,854.05 : 119,860.74 = 48,613.28 : x - Step 2: Convert to fraction form
86,854.05/119,860.74 = 48,613.28/x - Step 3: Cross multiply
86,854.05x = 119,860.74 × 48,613.28 - Step 4: Simplify right side
86,854.05x = 5,826,823,115.32 - Step 5: Solve for x
x = 5,826,823,115.32/86,854.05 - Step 6: Final answer
x = 67,087.52
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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.