Finding the Fourth Proportional to 90,690.99, 136,036.80 and 27,511.67
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Solution
The fourth proportional to 90,690.99, 136,036.80 and 27,511.67 is: 41,267.59
Step by Step Solution
- Step 1: Write the proportion equation
90,690.99 : 136,036.80 = 27,511.67 : x - Step 2: Convert to fraction form
90,690.99/136,036.80 = 27,511.67/x - Step 3: Cross multiply
90,690.99x = 136,036.80 × 27,511.67 - Step 4: Simplify right side
90,690.99x = 3,742,598,869.27 - Step 5: Solve for x
x = 3,742,598,869.27/90,690.99 - Step 6: Final answer
x = 41,267.59
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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.