Finding the Fourth Proportional to 86,686.84, 119,626.14 and 48,446.74
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Solution
The fourth proportional to 86,686.84, 119,626.14 and 48,446.74 is: 66,855.55
Step by Step Solution
- Step 1: Write the proportion equation
86,686.84 : 119,626.14 = 48,446.74 : x - Step 2: Convert to fraction form
86,686.84/119,626.14 = 48,446.74/x - Step 3: Cross multiply
86,686.84x = 119,626.14 × 48,446.74 - Step 4: Simplify right side
86,686.84x = 5,795,496,501.78 - Step 5: Solve for x
x = 5,795,496,501.78/86,686.84 - Step 6: Final answer
x = 66,855.55
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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.