Finding the Fourth Proportional to 86,387.94, 129,581.40 and 22,346.09
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Solution
The fourth proportional to 86,387.94, 129,581.40 and 22,346.09 is: 33,519.00
Step by Step Solution
- Step 1: Write the proportion equation
86,387.94 : 129,581.40 = 22,346.09 : x - Step 2: Convert to fraction form
86,387.94/129,581.40 = 22,346.09/x - Step 3: Cross multiply
86,387.94x = 129,581.40 × 22,346.09 - Step 4: Simplify right side
86,387.94x = 2,895,637,515.00 - Step 5: Solve for x
x = 2,895,637,515.00/86,387.94 - Step 6: Final answer
x = 33,519.00
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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.