Finding the Fourth Proportional to 98,798.84, 136,342.38 and 53,476.81
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Solution
The fourth proportional to 98,798.84, 136,342.38 and 53,476.81 is: 73,797.99
Step by Step Solution
- Step 1: Write the proportion equation
98,798.84 : 136,342.38 = 53,476.81 : x - Step 2: Convert to fraction form
98,798.84/136,342.38 = 53,476.81/x - Step 3: Cross multiply
98,798.84x = 136,342.38 × 53,476.81 - Step 4: Simplify right side
98,798.84x = 7,291,155,550.21 - Step 5: Solve for x
x = 7,291,155,550.21/98,798.84 - Step 6: Final answer
x = 73,797.99
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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.