Finding the Fourth Proportional to 97,917.52, 135,120.88 and 55,475.12
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Solution
The fourth proportional to 97,917.52, 135,120.88 and 55,475.12 is: 76,552.66
Step by Step Solution
- Step 1: Write the proportion equation
97,917.52 : 135,120.88 = 55,475.12 : x - Step 2: Convert to fraction form
97,917.52/135,120.88 = 55,475.12/x - Step 3: Cross multiply
97,917.52x = 135,120.88 × 55,475.12 - Step 4: Simplify right side
97,917.52x = 7,495,847,032.51 - Step 5: Solve for x
x = 7,495,847,032.51/97,917.52 - Step 6: Final answer
x = 76,552.66
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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.