Finding the Fourth Proportional to 89,545.23, 123,530.99 and 53,672.99
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Solution
The fourth proportional to 89,545.23, 123,530.99 and 53,672.99 is: 74,043.88
Step by Step Solution
- Step 1: Write the proportion equation
89,545.23 : 123,530.99 = 53,672.99 : x - Step 2: Convert to fraction form
89,545.23/123,530.99 = 53,672.99/x - Step 3: Cross multiply
89,545.23x = 123,530.99 × 53,672.99 - Step 4: Simplify right side
89,545.23x = 6,630,276,704.94 - Step 5: Solve for x
x = 6,630,276,704.94/89,545.23 - Step 6: Final answer
x = 74,043.88
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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.