Finding the Fourth Proportional to 92,757.02, 128,006.85 and 51,920.13
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Solution
The fourth proportional to 92,757.02, 128,006.85 and 51,920.13 is: 71,650.99
Step by Step Solution
- Step 1: Write the proportion equation
92,757.02 : 128,006.85 = 51,920.13 : x - Step 2: Convert to fraction form
92,757.02/128,006.85 = 51,920.13/x - Step 3: Cross multiply
92,757.02x = 128,006.85 × 51,920.13 - Step 4: Simplify right side
92,757.02x = 6,646,132,220.31 - Step 5: Solve for x
x = 6,646,132,220.31/92,757.02 - Step 6: Final answer
x = 71,650.99
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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.