Finding the Fourth Proportional to 93,027.68, 128,230.82 and 85,305.02
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Solution
The fourth proportional to 93,027.68, 128,230.82 and 85,305.02 is: 117,585.78
Step by Step Solution
- Step 1: Write the proportion equation
93,027.68 : 128,230.82 = 85,305.02 : x - Step 2: Convert to fraction form
93,027.68/128,230.82 = 85,305.02/x - Step 3: Cross multiply
93,027.68x = 128,230.82 × 85,305.02 - Step 4: Simplify right side
93,027.68x = 10,938,732,664.72 - Step 5: Solve for x
x = 10,938,732,664.72/93,027.68 - Step 6: Final answer
x = 117,585.78
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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.