Finding the Fourth Proportional to 90,125.20, 124,375.44 and 49,291.75
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Solution
The fourth proportional to 90,125.20, 124,375.44 and 49,291.75 is: 68,024.07
Step by Step Solution
- Step 1: Write the proportion equation
90,125.20 : 124,375.44 = 49,291.75 : x - Step 2: Convert to fraction form
90,125.20/124,375.44 = 49,291.75/x - Step 3: Cross multiply
90,125.20x = 124,375.44 × 49,291.75 - Step 4: Simplify right side
90,125.20x = 6,130,683,094.62 - Step 5: Solve for x
x = 6,130,683,094.62/90,125.20 - Step 6: Final answer
x = 68,024.07
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.