Finding the Fourth Proportional to 77,138.10, 115,707.15 and 24,552.90
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Solution
The fourth proportional to 77,138.10, 115,707.15 and 24,552.90 is: 36,829.35
Step by Step Solution
- Step 1: Write the proportion equation
77,138.10 : 115,707.15 = 24,552.90 : x - Step 2: Convert to fraction form
77,138.10/115,707.15 = 24,552.90/x - Step 3: Cross multiply
77,138.10x = 115,707.15 × 24,552.90 - Step 4: Simplify right side
77,138.10x = 2,840,946,083.24 - Step 5: Solve for x
x = 2,840,946,083.24/77,138.10 - Step 6: Final answer
x = 36,829.35
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Similar ratio
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1.5x scale
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.