Finding the Fourth Proportional to 91,225.28, 125,962.08 and 69,970.88
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Solution
The fourth proportional to 91,225.28, 125,962.08 and 69,970.88 is: 96,614.42
Step by Step Solution
- Step 1: Write the proportion equation
91,225.28 : 125,962.08 = 69,970.88 : x - Step 2: Convert to fraction form
91,225.28/125,962.08 = 69,970.88/x - Step 3: Cross multiply
91,225.28x = 125,962.08 × 69,970.88 - Step 4: Simplify right side
91,225.28x = 8,813,677,584.23 - Step 5: Solve for x
x = 8,813,677,584.23/91,225.28 - Step 6: Final answer
x = 96,614.42
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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.