Finding the Fourth Proportional to 81,671.02, 122,480.60 and 26,254.06
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Solution
The fourth proportional to 81,671.02, 122,480.60 and 26,254.06 is: 39,372.75
Step by Step Solution
- Step 1: Write the proportion equation
81,671.02 : 122,480.60 = 26,254.06 : x - Step 2: Convert to fraction form
81,671.02/122,480.60 = 26,254.06/x - Step 3: Cross multiply
81,671.02x = 122,480.60 × 26,254.06 - Step 4: Simplify right side
81,671.02x = 3,215,613,021.24 - Step 5: Solve for x
x = 3,215,613,021.24/81,671.02 - Step 6: Final answer
x = 39,372.75
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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.