Finding the Fourth Proportional to 85,559.99, 128,330.17 and 22,386.21
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Solution
The fourth proportional to 85,559.99, 128,330.17 and 22,386.21 is: 33,576.75
Step by Step Solution
- Step 1: Write the proportion equation
85,559.99 : 128,330.17 = 22,386.21 : x - Step 2: Convert to fraction form
85,559.99/128,330.17 = 22,386.21/x - Step 3: Cross multiply
85,559.99x = 128,330.17 × 22,386.21 - Step 4: Simplify right side
85,559.99x = 2,872,826,134.96 - Step 5: Solve for x
x = 2,872,826,134.96/85,559.99 - Step 6: Final answer
x = 33,576.75
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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.