Finding the Fourth Proportional to 75,116.60, 103,659.36 and 41,124.28
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Solution
The fourth proportional to 75,116.60, 103,659.36 and 41,124.28 is: 56,750.66
Step by Step Solution
- Step 1: Write the proportion equation
75,116.60 : 103,659.36 = 41,124.28 : x - Step 2: Convert to fraction form
75,116.60/103,659.36 = 41,124.28/x - Step 3: Cross multiply
75,116.60x = 103,659.36 × 41,124.28 - Step 4: Simplify right side
75,116.60x = 4,262,916,545.26 - Step 5: Solve for x
x = 4,262,916,545.26/75,116.60 - Step 6: Final answer
x = 56,750.66
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.