Finding the Fourth Proportional to 98,318.75, 135,674.65 and 58,017.81
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Solution
The fourth proportional to 98,318.75, 135,674.65 and 58,017.81 is: 80,061.49
Step by Step Solution
- Step 1: Write the proportion equation
98,318.75 : 135,674.65 = 58,017.81 : x - Step 2: Convert to fraction form
98,318.75/135,674.65 = 58,017.81/x - Step 3: Cross multiply
98,318.75x = 135,674.65 × 58,017.81 - Step 4: Simplify right side
98,318.75x = 7,871,545,366.51 - Step 5: Solve for x
x = 7,871,545,366.51/98,318.75 - Step 6: Final answer
x = 80,061.49
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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.