Finding the Fourth Proportional to 75,935.61, 113,901.88 and 19,774.48
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Solution
The fourth proportional to 75,935.61, 113,901.88 and 19,774.48 is: 29,661.32
Step by Step Solution
- Step 1: Write the proportion equation
75,935.61 : 113,901.88 = 19,774.48 : x - Step 2: Convert to fraction form
75,935.61/113,901.88 = 19,774.48/x - Step 3: Cross multiply
75,935.61x = 113,901.88 × 19,774.48 - Step 4: Simplify right side
75,935.61x = 2,252,350,398.59 - Step 5: Solve for x
x = 2,252,350,398.59/75,935.61 - Step 6: Final answer
x = 29,661.32
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1.5x scale
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.