Finding the Fourth Proportional to 75,126.24, 103,675.68 and 43,289.76
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Solution
The fourth proportional to 75,126.24, 103,675.68 and 43,289.76 is: 59,740.72
Step by Step Solution
- Step 1: Write the proportion equation
75,126.24 : 103,675.68 = 43,289.76 : x - Step 2: Convert to fraction form
75,126.24/103,675.68 = 43,289.76/x - Step 3: Cross multiply
75,126.24x = 103,675.68 × 43,289.76 - Step 4: Simplify right side
75,126.24x = 4,488,095,305.04 - Step 5: Solve for x
x = 4,488,095,305.04/75,126.24 - Step 6: Final answer
x = 59,740.72
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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.