Finding the Fourth Proportional to 98,897.04, 136,491.84 and 56,458.08
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Solution
The fourth proportional to 98,897.04, 136,491.84 and 56,458.08 is: 77,920.10
Step by Step Solution
- Step 1: Write the proportion equation
98,897.04 : 136,491.84 = 56,458.08 : x - Step 2: Convert to fraction form
98,897.04/136,491.84 = 56,458.08/x - Step 3: Cross multiply
98,897.04x = 136,491.84 × 56,458.08 - Step 4: Simplify right side
98,897.04x = 7,706,067,222.07 - Step 5: Solve for x
x = 7,706,067,222.07/98,897.04 - Step 6: Final answer
x = 77,920.10
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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.