Finding the Fourth Proportional to 93,261.80, 128,669.67 and 56,949.99
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Solution
The fourth proportional to 93,261.80, 128,669.67 and 56,949.99 is: 78,571.69
Step by Step Solution
- Step 1: Write the proportion equation
93,261.80 : 128,669.67 = 56,949.99 : x - Step 2: Convert to fraction form
93,261.80/128,669.67 = 56,949.99/x - Step 3: Cross multiply
93,261.80x = 128,669.67 × 56,949.99 - Step 4: Simplify right side
93,261.80x = 7,327,736,611.38 - Step 5: Solve for x
x = 7,327,736,611.38/93,261.80 - Step 6: Final answer
x = 78,571.69
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.