Finding the Fourth Proportional to 74,373.14, 111,545.36 and 21,064.70
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Solution
The fourth proportional to 74,373.14, 111,545.36 and 21,064.70 is: 31,592.99
Step by Step Solution
- Step 1: Write the proportion equation
74,373.14 : 111,545.36 = 21,064.70 : x - Step 2: Convert to fraction form
74,373.14/111,545.36 = 21,064.70/x - Step 3: Cross multiply
74,373.14x = 111,545.36 × 21,064.70 - Step 4: Simplify right side
74,373.14x = 2,349,669,544.79 - Step 5: Solve for x
x = 2,349,669,544.79/74,373.14 - Step 6: Final answer
x = 31,592.99
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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.