Finding the Fourth Proportional to 75,235.68, 103,821.24 and 43,402.68
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Solution
The fourth proportional to 75,235.68, 103,821.24 and 43,402.68 is: 59,893.39
Step by Step Solution
- Step 1: Write the proportion equation
75,235.68 : 103,821.24 = 43,402.68 : x - Step 2: Convert to fraction form
75,235.68/103,821.24 = 43,402.68/x - Step 3: Cross multiply
75,235.68x = 103,821.24 × 43,402.68 - Step 4: Simplify right side
75,235.68x = 4,506,120,056.92 - Step 5: Solve for x
x = 4,506,120,056.92/75,235.68 - Step 6: Final answer
x = 59,893.39
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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.