Finding the Fourth Proportional to 79,867.58, 119,788.68 and 26,555.12
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Solution
The fourth proportional to 79,867.58, 119,788.68 and 26,555.12 is: 39,828.46
Step by Step Solution
- Step 1: Write the proportion equation
79,867.58 : 119,788.68 = 26,555.12 : x - Step 2: Convert to fraction form
79,867.58/119,788.68 = 26,555.12/x - Step 3: Cross multiply
79,867.58x = 119,788.68 × 26,555.12 - Step 4: Simplify right side
79,867.58x = 3,181,002,772.04 - Step 5: Solve for x
x = 3,181,002,772.04/79,867.58 - Step 6: Final answer
x = 39,828.46
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1.5x scale
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.