Finding the Fourth Proportional to 85,551.99, 128,285.16 and 26,379.98
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Solution
The fourth proportional to 85,551.99, 128,285.16 and 26,379.98 is: 39,556.76
Step by Step Solution
- Step 1: Write the proportion equation
85,551.99 : 128,285.16 = 26,379.98 : x - Step 2: Convert to fraction form
85,551.99/128,285.16 = 26,379.98/x - Step 3: Cross multiply
85,551.99x = 128,285.16 × 26,379.98 - Step 4: Simplify right side
85,551.99x = 3,384,159,363.13 - Step 5: Solve for x
x = 3,384,159,363.13/85,551.99 - Step 6: Final answer
x = 39,556.76
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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.