Finding the Fourth Proportional to 98,327.99, 135,704.28 and 55,892.90
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Solution
The fourth proportional to 98,327.99, 135,704.28 and 55,892.90 is: 77,138.82
Step by Step Solution
- Step 1: Write the proportion equation
98,327.99 : 135,704.28 = 55,892.90 : x - Step 2: Convert to fraction form
98,327.99/135,704.28 = 55,892.90/x - Step 3: Cross multiply
98,327.99x = 135,704.28 × 55,892.90 - Step 4: Simplify right side
98,327.99x = 7,584,905,073.09 - Step 5: Solve for x
x = 7,584,905,073.09/98,327.99 - Step 6: Final answer
x = 77,138.82
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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.