Finding the Fourth Proportional to 98,554.08, 136,028.94 and 56,137.68
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Solution
The fourth proportional to 98,554.08, 136,028.94 and 56,137.68 is: 77,483.85
Step by Step Solution
- Step 1: Write the proportion equation
98,554.08 : 136,028.94 = 56,137.68 : x - Step 2: Convert to fraction form
98,554.08/136,028.94 = 56,137.68/x - Step 3: Cross multiply
98,554.08x = 136,028.94 × 56,137.68 - Step 4: Simplify right side
98,554.08x = 7,636,349,104.46 - Step 5: Solve for x
x = 7,636,349,104.46/98,554.08 - Step 6: Final answer
x = 77,483.85
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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.