Finding the Fourth Proportional to 101,735.73, 140,397.01 and 56,415.62
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Solution
The fourth proportional to 101,735.73, 140,397.01 and 56,415.62 is: 77,854.50
Step by Step Solution
- Step 1: Write the proportion equation
101,735.73 : 140,397.01 = 56,415.62 : x - Step 2: Convert to fraction form
101,735.73/140,397.01 = 56,415.62/x - Step 3: Cross multiply
101,735.73x = 140,397.01 × 56,415.62 - Step 4: Simplify right side
101,735.73x = 7,920,584,575.25 - Step 5: Solve for x
x = 7,920,584,575.25/101,735.73 - Step 6: Final answer
x = 77,854.50
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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.