Finding the Fourth Proportional to 79,027.65, 117,525.06 and 76,536.09
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Solution
The fourth proportional to 79,027.65, 117,525.06 and 76,536.09 is: 113,819.77
Step by Step Solution
- Step 1: Write the proportion equation
79,027.65 : 117,525.06 = 76,536.09 : x - Step 2: Convert to fraction form
79,027.65/117,525.06 = 76,536.09/x - Step 3: Cross multiply
79,027.65x = 117,525.06 × 76,536.09 - Step 4: Simplify right side
79,027.65x = 8,994,908,569.42 - Step 5: Solve for x
x = 8,994,908,569.42/79,027.65 - Step 6: Final answer
x = 113,819.77
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.