Finding the Fourth Proportional to 75,122.16, 103,661.40 and 44,901.48
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Solution
The fourth proportional to 75,122.16, 103,661.40 and 44,901.48 is: 61,959.75
Step by Step Solution
- Step 1: Write the proportion equation
75,122.16 : 103,661.40 = 44,901.48 : x - Step 2: Convert to fraction form
75,122.16/103,661.40 = 44,901.48/x - Step 3: Cross multiply
75,122.16x = 103,661.40 × 44,901.48 - Step 4: Simplify right side
75,122.16x = 4,654,550,278.87 - Step 5: Solve for x
x = 4,654,550,278.87/75,122.16 - Step 6: Final answer
x = 61,959.75
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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.