Finding the Fourth Proportional to 77,387.05, 115,971.09 and 32,969.08
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Solution
The fourth proportional to 77,387.05, 115,971.09 and 32,969.08 is: 49,406.98
Step by Step Solution
- Step 1: Write the proportion equation
77,387.05 : 115,971.09 = 32,969.08 : x - Step 2: Convert to fraction form
77,387.05/115,971.09 = 32,969.08/x - Step 3: Cross multiply
77,387.05x = 115,971.09 × 32,969.08 - Step 4: Simplify right side
77,387.05x = 3,823,460,143.90 - Step 5: Solve for x
x = 3,823,460,143.90/77,387.05 - Step 6: Final answer
x = 49,406.98
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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.