Finding the Fourth Proportional to 92,507.68, 127,630.80 and 56,660.32
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Solution
The fourth proportional to 92,507.68, 127,630.80 and 56,660.32 is: 78,172.99
Step by Step Solution
- Step 1: Write the proportion equation
92,507.68 : 127,630.80 = 56,660.32 : x - Step 2: Convert to fraction form
92,507.68/127,630.80 = 56,660.32/x - Step 3: Cross multiply
92,507.68x = 127,630.80 × 56,660.32 - Step 4: Simplify right side
92,507.68x = 7,231,601,969.86 - Step 5: Solve for x
x = 7,231,601,969.86/92,507.68 - Step 6: Final answer
x = 78,172.99
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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.