Finding the Fourth Proportional to 90,202.08, 124,479.99 and 49,915.74
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Solution
The fourth proportional to 90,202.08, 124,479.99 and 49,915.74 is: 68,884.34
Step by Step Solution
- Step 1: Write the proportion equation
90,202.08 : 124,479.99 = 49,915.74 : x - Step 2: Convert to fraction form
90,202.08/124,479.99 = 49,915.74/x - Step 3: Cross multiply
90,202.08x = 124,479.99 × 49,915.74 - Step 4: Simplify right side
90,202.08x = 6,213,510,816.04 - Step 5: Solve for x
x = 6,213,510,816.04/90,202.08 - Step 6: Final answer
x = 68,884.34
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1.5x scale
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.