Finding the Fourth Proportional to 97,972.70, 135,203.88 and 54,961.77
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Solution
The fourth proportional to 97,972.70, 135,203.88 and 54,961.77 is: 75,848.12
Step by Step Solution
- Step 1: Write the proportion equation
97,972.70 : 135,203.88 = 54,961.77 : x - Step 2: Convert to fraction form
97,972.70/135,203.88 = 54,961.77/x - Step 3: Cross multiply
97,972.70x = 135,203.88 × 54,961.77 - Step 4: Simplify right side
97,972.70x = 7,431,044,555.67 - Step 5: Solve for x
x = 7,431,044,555.67/97,972.70 - Step 6: Final answer
x = 75,848.12
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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.