Finding the Fourth Proportional to 98,368.14, 135,745.08 and 55,350.02
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Solution
The fourth proportional to 98,368.14, 135,745.08 and 55,350.02 is: 76,381.36
Step by Step Solution
- Step 1: Write the proportion equation
98,368.14 : 135,745.08 = 55,350.02 : x - Step 2: Convert to fraction form
98,368.14/135,745.08 = 55,350.02/x - Step 3: Cross multiply
98,368.14x = 135,745.08 × 55,350.02 - Step 4: Simplify right side
98,368.14x = 7,513,492,572.48 - Step 5: Solve for x
x = 7,513,492,572.48/98,368.14 - Step 6: Final answer
x = 76,381.36
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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.