Finding the Fourth Proportional to 87,148.68, 130,710.65 and 27,976.70
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Solution
The fourth proportional to 87,148.68, 130,710.65 and 27,976.70 is: 41,961.07
Step by Step Solution
- Step 1: Write the proportion equation
87,148.68 : 130,710.65 = 27,976.70 : x - Step 2: Convert to fraction form
87,148.68/130,710.65 = 27,976.70/x - Step 3: Cross multiply
87,148.68x = 130,710.65 × 27,976.70 - Step 4: Simplify right side
87,148.68x = 3,656,851,848.42 - Step 5: Solve for x
x = 3,656,851,848.42/87,148.68 - Step 6: Final answer
x = 41,961.07
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.