Finding the Fourth Proportional to 77,140.62, 115,719.44 and 24,537.80
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Solution
The fourth proportional to 77,140.62, 115,719.44 and 24,537.80 is: 36,809.40
Step by Step Solution
- Step 1: Write the proportion equation
77,140.62 : 115,719.44 = 24,537.80 : x - Step 2: Convert to fraction form
77,140.62/115,719.44 = 24,537.80/x - Step 3: Cross multiply
77,140.62x = 115,719.44 × 24,537.80 - Step 4: Simplify right side
77,140.62x = 2,839,499,773.55 - Step 5: Solve for x
x = 2,839,499,773.55/77,140.62 - Step 6: Final answer
x = 36,809.40
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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.