Finding the Fourth Proportional to 98,793.47, 136,335.35 and 53,472.05
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Solution
The fourth proportional to 98,793.47, 136,335.35 and 53,472.05 is: 73,791.62
Step by Step Solution
- Step 1: Write the proportion equation
98,793.47 : 136,335.35 = 53,472.05 : x - Step 2: Convert to fraction form
98,793.47/136,335.35 = 53,472.05/x - Step 3: Cross multiply
98,793.47x = 136,335.35 × 53,472.05 - Step 4: Simplify right side
98,793.47x = 7,290,130,615.23 - Step 5: Solve for x
x = 7,290,130,615.23/98,793.47 - Step 6: Final answer
x = 73,791.62
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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.