Finding the Fourth Proportional to 87,962.88, 121,392.72 and 62,496.48
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Solution
The fourth proportional to 87,962.88, 121,392.72 and 62,496.48 is: 86,247.95
Step by Step Solution
- Step 1: Write the proportion equation
87,962.88 : 121,392.72 = 62,496.48 : x - Step 2: Convert to fraction form
87,962.88/121,392.72 = 62,496.48/x - Step 3: Cross multiply
87,962.88x = 121,392.72 × 62,496.48 - Step 4: Simplify right side
87,962.88x = 7,586,617,697.63 - Step 5: Solve for x
x = 7,586,617,697.63/87,962.88 - Step 6: Final answer
x = 86,247.95
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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.