Finding the Fourth Proportional to 98,545.36, 135,992.73 and 56,103.90
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Solution
The fourth proportional to 98,545.36, 135,992.73 and 56,103.90 is: 77,423.46
Step by Step Solution
- Step 1: Write the proportion equation
98,545.36 : 135,992.73 = 56,103.90 : x - Step 2: Convert to fraction form
98,545.36/135,992.73 = 56,103.90/x - Step 3: Cross multiply
98,545.36x = 135,992.73 × 56,103.90 - Step 4: Simplify right side
98,545.36x = 7,629,722,524.65 - Step 5: Solve for x
x = 7,629,722,524.65/98,545.36 - Step 6: Final answer
x = 77,423.46
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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.