Finding the Fourth Proportional to 91,038.63, 136,557.95 and 28,713.99
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Solution
The fourth proportional to 91,038.63, 136,557.95 and 28,713.99 is: 43,070.99
Step by Step Solution
- Step 1: Write the proportion equation
91,038.63 : 136,557.95 = 28,713.99 : x - Step 2: Convert to fraction form
91,038.63/136,557.95 = 28,713.99/x - Step 3: Cross multiply
91,038.63x = 136,557.95 × 28,713.99 - Step 4: Simplify right side
91,038.63x = 3,921,123,610.72 - Step 5: Solve for x
x = 3,921,123,610.72/91,038.63 - Step 6: Final answer
x = 43,070.99
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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.