Finding the Fourth Proportional to 92,759.24, 128,008.08 and 50,318.08
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Solution
The fourth proportional to 92,759.24, 128,008.08 and 50,318.08 is: 69,439.12
Step by Step Solution
- Step 1: Write the proportion equation
92,759.24 : 128,008.08 = 50,318.08 : x - Step 2: Convert to fraction form
92,759.24/128,008.08 = 50,318.08/x - Step 3: Cross multiply
92,759.24x = 128,008.08 × 50,318.08 - Step 4: Simplify right side
92,759.24x = 6,441,120,490.07 - Step 5: Solve for x
x = 6,441,120,490.07/92,759.24 - Step 6: Final answer
x = 69,439.12
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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.