Finding the Fourth Proportional to 75,537.24, 113,319.48 and 31,139.28
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Solution
The fourth proportional to 75,537.24, 113,319.48 and 31,139.28 is: 46,714.53
Step by Step Solution
- Step 1: Write the proportion equation
75,537.24 : 113,319.48 = 31,139.28 : x - Step 2: Convert to fraction form
75,537.24/113,319.48 = 31,139.28/x - Step 3: Cross multiply
75,537.24x = 113,319.48 × 31,139.28 - Step 4: Simplify right side
75,537.24x = 3,528,687,017.17 - Step 5: Solve for x
x = 3,528,687,017.17/75,537.24 - Step 6: Final answer
x = 46,714.53
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.