Finding the Fourth Proportional to 90,962.24, 125,479.84 and 62,618.72
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Solution
The fourth proportional to 90,962.24, 125,479.84 and 62,618.72 is: 86,380.75
Step by Step Solution
- Step 1: Write the proportion equation
90,962.24 : 125,479.84 = 62,618.72 : x - Step 2: Convert to fraction form
90,962.24/125,479.84 = 62,618.72/x - Step 3: Cross multiply
90,962.24x = 125,479.84 × 62,618.72 - Step 4: Simplify right side
90,962.24x = 7,857,386,966.60 - Step 5: Solve for x
x = 7,857,386,966.60/90,962.24 - Step 6: Final answer
x = 86,380.75
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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.