Finding the Fourth Proportional to 98,453.40, 135,864.48 and 56,011.84
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Solution
The fourth proportional to 98,453.40, 135,864.48 and 56,011.84 is: 77,295.65
Step by Step Solution
- Step 1: Write the proportion equation
98,453.40 : 135,864.48 = 56,011.84 : x - Step 2: Convert to fraction form
98,453.40/135,864.48 = 56,011.84/x - Step 3: Cross multiply
98,453.40x = 135,864.48 × 56,011.84 - Step 4: Simplify right side
98,453.40x = 7,610,019,515.44 - Step 5: Solve for x
x = 7,610,019,515.44/98,453.40 - Step 6: Final answer
x = 77,295.65
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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.