Finding the Fourth Proportional to 75,106.61, 103,652.11 and 43,277.55
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Solution
The fourth proportional to 75,106.61, 103,652.11 and 43,277.55 is: 59,725.89
Step by Step Solution
- Step 1: Write the proportion equation
75,106.61 : 103,652.11 = 43,277.55 : x - Step 2: Convert to fraction form
75,106.61/103,652.11 = 43,277.55/x - Step 3: Cross multiply
75,106.61x = 103,652.11 × 43,277.55 - Step 4: Simplify right side
75,106.61x = 4,485,809,373.13 - Step 5: Solve for x
x = 4,485,809,373.13/75,106.61 - Step 6: Final answer
x = 59,725.89
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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.