Finding the Fourth Proportional to 77,054.08, 115,712.88 and 47,645.68
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Solution
The fourth proportional to 77,054.08, 115,712.88 and 47,645.68 is: 71,549.99
Step by Step Solution
- Step 1: Write the proportion equation
77,054.08 : 115,712.88 = 47,645.68 : x - Step 2: Convert to fraction form
77,054.08/115,712.88 = 47,645.68/x - Step 3: Cross multiply
77,054.08x = 115,712.88 × 47,645.68 - Step 4: Simplify right side
77,054.08x = 5,513,218,852.36 - Step 5: Solve for x
x = 5,513,218,852.36/77,054.08 - Step 6: Final answer
x = 71,549.99
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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.