Finding the Fourth Proportional to 77,932.08, 107,545.56 and 47,769.84
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Solution
The fourth proportional to 77,932.08, 107,545.56 and 47,769.84 is: 65,921.94
Step by Step Solution
- Step 1: Write the proportion equation
77,932.08 : 107,545.56 = 47,769.84 : x - Step 2: Convert to fraction form
77,932.08/107,545.56 = 47,769.84/x - Step 3: Cross multiply
77,932.08x = 107,545.56 × 47,769.84 - Step 4: Simplify right side
77,932.08x = 5,137,434,193.91 - Step 5: Solve for x
x = 5,137,434,193.91/77,932.08 - Step 6: Final answer
x = 65,921.94
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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.