Finding the Fourth Proportional to 88,215.56, 121,737.68 and 47,928.96
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Solution
The fourth proportional to 88,215.56, 121,737.68 and 47,928.96 is: 66,142.08
Step by Step Solution
- Step 1: Write the proportion equation
88,215.56 : 121,737.68 = 47,928.96 : x - Step 2: Convert to fraction form
88,215.56/121,737.68 = 47,928.96/x - Step 3: Cross multiply
88,215.56x = 121,737.68 × 47,928.96 - Step 4: Simplify right side
88,215.56x = 5,834,760,395.21 - Step 5: Solve for x
x = 5,834,760,395.21/88,215.56 - Step 6: Final answer
x = 66,142.08
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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.