Finding the Fourth Proportional to 77,024.73, 115,537.28 and 20,865.18
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Solution
The fourth proportional to 77,024.73, 115,537.28 and 20,865.18 is: 31,297.82
Step by Step Solution
- Step 1: Write the proportion equation
77,024.73 : 115,537.28 = 20,865.18 : x - Step 2: Convert to fraction form
77,024.73/115,537.28 = 20,865.18/x - Step 3: Cross multiply
77,024.73x = 115,537.28 × 20,865.18 - Step 4: Simplify right side
77,024.73x = 2,410,706,143.91 - Step 5: Solve for x
x = 2,410,706,143.91/77,024.73 - Step 6: Final answer
x = 31,297.82
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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.