Finding the Fourth Proportional to 98,640.06, 136,123.88 and 53,317.91
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Solution
The fourth proportional to 98,640.06, 136,123.88 and 53,317.91 is: 73,579.03
Step by Step Solution
- Step 1: Write the proportion equation
98,640.06 : 136,123.88 = 53,317.91 : x - Step 2: Convert to fraction form
98,640.06/136,123.88 = 53,317.91/x - Step 3: Cross multiply
98,640.06x = 136,123.88 × 53,317.91 - Step 4: Simplify right side
98,640.06x = 7,257,839,835.48 - Step 5: Solve for x
x = 7,257,839,835.48/98,640.06 - Step 6: Final answer
x = 73,579.03
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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.