Finding the Fourth Proportional to 92,926.74, 128,239.52 and 50,485.26
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Solution
The fourth proportional to 92,926.74, 128,239.52 and 50,485.26 is: 69,669.99
Step by Step Solution
- Step 1: Write the proportion equation
92,926.74 : 128,239.52 = 50,485.26 : x - Step 2: Convert to fraction form
92,926.74/128,239.52 = 50,485.26/x - Step 3: Cross multiply
92,926.74x = 128,239.52 × 50,485.26 - Step 4: Simplify right side
92,926.74x = 6,474,205,257.05 - Step 5: Solve for x
x = 6,474,205,257.05/92,926.74 - Step 6: Final answer
x = 69,669.99
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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.