Finding the Fourth Proportional to 92,851.36, 128,135.09 and 50,408.98
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Solution
The fourth proportional to 92,851.36, 128,135.09 and 50,408.98 is: 69,564.50
Step by Step Solution
- Step 1: Write the proportion equation
92,851.36 : 128,135.09 = 50,408.98 : x - Step 2: Convert to fraction form
92,851.36/128,135.09 = 50,408.98/x - Step 3: Cross multiply
92,851.36x = 128,135.09 × 50,408.98 - Step 4: Simplify right side
92,851.36x = 6,459,158,616.73 - Step 5: Solve for x
x = 6,459,158,616.73/92,851.36 - Step 6: Final answer
x = 69,564.50
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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.