Finding the Fourth Proportional to 76,545.14, 114,778.35 and 34,389.09
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Solution
The fourth proportional to 76,545.14, 114,778.35 and 34,389.09 is: 51,565.96
Step by Step Solution
- Step 1: Write the proportion equation
76,545.14 : 114,778.35 = 34,389.09 : x - Step 2: Convert to fraction form
76,545.14/114,778.35 = 34,389.09/x - Step 3: Cross multiply
76,545.14x = 114,778.35 × 34,389.09 - Step 4: Simplify right side
76,545.14x = 3,947,123,008.20 - Step 5: Solve for x
x = 3,947,123,008.20/76,545.14 - Step 6: Final answer
x = 51,565.96
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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.