Finding the Fourth Proportional to 77,177.20, 115,768.16 and 26,575.68
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Solution
The fourth proportional to 77,177.20, 115,768.16 and 26,575.68 is: 39,864.33
Step by Step Solution
- Step 1: Write the proportion equation
77,177.20 : 115,768.16 = 26,575.68 : x - Step 2: Convert to fraction form
77,177.20/115,768.16 = 26,575.68/x - Step 3: Cross multiply
77,177.20x = 115,768.16 × 26,575.68 - Step 4: Simplify right side
77,177.20x = 3,076,617,574.35 - Step 5: Solve for x
x = 3,076,617,574.35/77,177.20 - Step 6: Final answer
x = 39,864.33
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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.