Finding the Fourth Proportional to 92,085.12, 138,127.68 and 60,913.08
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Solution
The fourth proportional to 92,085.12, 138,127.68 and 60,913.08 is: 91,369.62
Step by Step Solution
- Step 1: Write the proportion equation
92,085.12 : 138,127.68 = 60,913.08 : x - Step 2: Convert to fraction form
92,085.12/138,127.68 = 60,913.08/x - Step 3: Cross multiply
92,085.12x = 138,127.68 × 60,913.08 - Step 4: Simplify right side
92,085.12x = 8,413,782,422.05 - Step 5: Solve for x
x = 8,413,782,422.05/92,085.12 - Step 6: Final answer
x = 91,369.62
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.