Finding the Fourth Proportional to 77,267.40, 115,901.10 and 27,347.10
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Solution
The fourth proportional to 77,267.40, 115,901.10 and 27,347.10 is: 41,020.65
Step by Step Solution
- Step 1: Write the proportion equation
77,267.40 : 115,901.10 = 27,347.10 : x - Step 2: Convert to fraction form
77,267.40/115,901.10 = 27,347.10/x - Step 3: Cross multiply
77,267.40x = 115,901.10 × 27,347.10 - Step 4: Simplify right side
77,267.40x = 3,169,558,971.81 - Step 5: Solve for x
x = 3,169,558,971.81/77,267.40 - Step 6: Final answer
x = 41,020.65
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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.