Finding the Fourth Proportional to 97,961.48, 135,188.36 and 57,124.50
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Solution
The fourth proportional to 97,961.48, 135,188.36 and 57,124.50 is: 78,832.69
Step by Step Solution
- Step 1: Write the proportion equation
97,961.48 : 135,188.36 = 57,124.50 : x - Step 2: Convert to fraction form
97,961.48/135,188.36 = 57,124.50/x - Step 3: Cross multiply
97,961.48x = 135,188.36 × 57,124.50 - Step 4: Simplify right side
97,961.48x = 7,722,567,470.82 - Step 5: Solve for x
x = 7,722,567,470.82/97,961.48 - Step 6: Final answer
x = 78,832.69
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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.