Finding the Fourth Proportional to 86,527.13, 119,461.49 and 66,345.21
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Solution
The fourth proportional to 86,527.13, 119,461.49 and 66,345.21 is: 91,597.83
Step by Step Solution
- Step 1: Write the proportion equation
86,527.13 : 119,461.49 = 66,345.21 : x - Step 2: Convert to fraction form
86,527.13/119,461.49 = 66,345.21/x - Step 3: Cross multiply
86,527.13x = 119,461.49 × 66,345.21 - Step 4: Simplify right side
86,527.13x = 7,925,697,309.24 - Step 5: Solve for x
x = 7,925,697,309.24/86,527.13 - Step 6: Final answer
x = 91,597.83
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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.