Finding the Fourth Proportional to 75,545.65, 104,207.07 and 54,353.62
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Solution
The fourth proportional to 75,545.65, 104,207.07 and 54,353.62 is: 74,974.95
Step by Step Solution
- Step 1: Write the proportion equation
75,545.65 : 104,207.07 = 54,353.62 : x - Step 2: Convert to fraction form
75,545.65/104,207.07 = 54,353.62/x - Step 3: Cross multiply
75,545.65x = 104,207.07 × 54,353.62 - Step 4: Simplify right side
75,545.65x = 5,664,031,484.09 - Step 5: Solve for x
x = 5,664,031,484.09/75,545.65 - Step 6: Final answer
x = 74,974.95
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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.