Finding the Fourth Proportional to 98,534.13, 135,977.64 and 53,822.13
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Solution
The fourth proportional to 98,534.13, 135,977.64 and 53,822.13 is: 74,274.83
Step by Step Solution
- Step 1: Write the proportion equation
98,534.13 : 135,977.64 = 53,822.13 : x - Step 2: Convert to fraction form
98,534.13/135,977.64 = 53,822.13/x - Step 3: Cross multiply
98,534.13x = 135,977.64 × 53,822.13 - Step 4: Simplify right side
98,534.13x = 7,318,605,268.17 - Step 5: Solve for x
x = 7,318,605,268.17/98,534.13 - Step 6: Final answer
x = 74,274.83
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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.