Finding the Fourth Proportional to 127,785.49, 191,671.30 and 39,032.07
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Solution
The fourth proportional to 127,785.49, 191,671.30 and 39,032.07 is: 58,545.99
Step by Step Solution
- Step 1: Write the proportion equation
127,785.49 : 191,671.30 = 39,032.07 : x - Step 2: Convert to fraction form
127,785.49/191,671.30 = 39,032.07/x - Step 3: Cross multiply
127,785.49x = 191,671.30 × 39,032.07 - Step 4: Simplify right side
127,785.49x = 7,481,327,598.59 - Step 5: Solve for x
x = 7,481,327,598.59/127,785.49 - Step 6: Final answer
x = 58,545.99
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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.