Finding the Fourth Proportional to 73,781.80, 110,672.70 and 18,377.80
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Solution
The fourth proportional to 73,781.80, 110,672.70 and 18,377.80 is: 27,566.70
Step by Step Solution
- Step 1: Write the proportion equation
73,781.80 : 110,672.70 = 18,377.80 : x - Step 2: Convert to fraction form
73,781.80/110,672.70 = 18,377.80/x - Step 3: Cross multiply
73,781.80x = 110,672.70 × 18,377.80 - Step 4: Simplify right side
73,781.80x = 2,033,920,746.06 - Step 5: Solve for x
x = 2,033,920,746.06/73,781.80 - Step 6: Final answer
x = 27,566.70
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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.