Finding the Fourth Proportional to 75,625.35, 113,456.70 and 31,264.79
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Solution
The fourth proportional to 75,625.35, 113,456.70 and 31,264.79 is: 46,904.90
Step by Step Solution
- Step 1: Write the proportion equation
75,625.35 : 113,456.70 = 31,264.79 : x - Step 2: Convert to fraction form
75,625.35/113,456.70 = 31,264.79/x - Step 3: Cross multiply
75,625.35x = 113,456.70 × 31,264.79 - Step 4: Simplify right side
75,625.35x = 3,547,199,332.31 - Step 5: Solve for x
x = 3,547,199,332.31/75,625.35 - Step 6: Final answer
x = 46,904.90
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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.