Finding the Fourth Proportional to 77,097.84, 115,646.88 and 39,662.88
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Solution
The fourth proportional to 77,097.84, 115,646.88 and 39,662.88 is: 59,494.38
Step by Step Solution
- Step 1: Write the proportion equation
77,097.84 : 115,646.88 = 39,662.88 : x - Step 2: Convert to fraction form
77,097.84/115,646.88 = 39,662.88/x - Step 3: Cross multiply
77,097.84x = 115,646.88 × 39,662.88 - Step 4: Simplify right side
77,097.84x = 4,586,888,323.81 - Step 5: Solve for x
x = 4,586,888,323.81/77,097.84 - Step 6: Final answer
x = 59,494.38
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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.