Finding the Fourth Proportional to 79,529.40, 119,293.80 and 20,364.99
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Solution
The fourth proportional to 79,529.40, 119,293.80 and 20,364.99 is: 30,547.41
Step by Step Solution
- Step 1: Write the proportion equation
79,529.40 : 119,293.80 = 20,364.99 : x - Step 2: Convert to fraction form
79,529.40/119,293.80 = 20,364.99/x - Step 3: Cross multiply
79,529.40x = 119,293.80 × 20,364.99 - Step 4: Simplify right side
79,529.40x = 2,429,417,044.06 - Step 5: Solve for x
x = 2,429,417,044.06/79,529.40 - Step 6: Final answer
x = 30,547.41
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.