Finding the Fourth Proportional to 98,911.53, 136,507.68 and 56,476.44
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Solution
The fourth proportional to 98,911.53, 136,507.68 and 56,476.44 is: 77,943.06
Step by Step Solution
- Step 1: Write the proportion equation
98,911.53 : 136,507.68 = 56,476.44 : x - Step 2: Convert to fraction form
98,911.53/136,507.68 = 56,476.44/x - Step 3: Cross multiply
98,911.53x = 136,507.68 × 56,476.44 - Step 4: Simplify right side
98,911.53x = 7,709,467,799.06 - Step 5: Solve for x
x = 7,709,467,799.06/98,911.53 - Step 6: Final answer
x = 77,943.06
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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.