Finding the Fourth Proportional to 85,902.14, 128,822.33 and 29,726.99
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Solution
The fourth proportional to 85,902.14, 128,822.33 and 29,726.99 is: 44,579.81
Step by Step Solution
- Step 1: Write the proportion equation
85,902.14 : 128,822.33 = 29,726.99 : x - Step 2: Convert to fraction form
85,902.14/128,822.33 = 29,726.99/x - Step 3: Cross multiply
85,902.14x = 128,822.33 × 29,726.99 - Step 4: Simplify right side
85,902.14x = 3,829,500,753.60 - Step 5: Solve for x
x = 3,829,500,753.60/85,902.14 - Step 6: Final answer
x = 44,579.81
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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.