Finding the Fourth Proportional to 77,312.26, 115,931.84 and 29,949.54
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Solution
The fourth proportional to 77,312.26, 115,931.84 and 29,949.54 is: 44,910.15
Step by Step Solution
- Step 1: Write the proportion equation
77,312.26 : 115,931.84 = 29,949.54 : x - Step 2: Convert to fraction form
77,312.26/115,931.84 = 29,949.54/x - Step 3: Cross multiply
77,312.26x = 115,931.84 × 29,949.54 - Step 4: Simplify right side
77,312.26x = 3,472,105,064.40 - Step 5: Solve for x
x = 3,472,105,064.40/77,312.26 - Step 6: Final answer
x = 44,910.15
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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.