Finding the Fourth Proportional to 77,232.05, 115,848.08 and 61,680.05
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Solution
The fourth proportional to 77,232.05, 115,848.08 and 61,680.05 is: 92,520.08
Step by Step Solution
- Step 1: Write the proportion equation
77,232.05 : 115,848.08 = 61,680.05 : x - Step 2: Convert to fraction form
77,232.05/115,848.08 = 61,680.05/x - Step 3: Cross multiply
77,232.05x = 115,848.08 × 61,680.05 - Step 4: Simplify right side
77,232.05x = 7,145,515,058.40 - Step 5: Solve for x
x = 7,145,515,058.40/77,232.05 - Step 6: Final answer
x = 92,520.08
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.