Finding the Fourth Proportional to 86,987.14, 130,530.93 and 47,006.26
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Solution
The fourth proportional to 86,987.14, 130,530.93 and 47,006.26 is: 70,536.53
Step by Step Solution
- Step 1: Write the proportion equation
86,987.14 : 130,530.93 = 47,006.26 : x - Step 2: Convert to fraction form
86,987.14/130,530.93 = 47,006.26/x - Step 3: Cross multiply
86,987.14x = 130,530.93 × 47,006.26 - Step 4: Simplify right side
86,987.14x = 6,135,770,833.62 - Step 5: Solve for x
x = 6,135,770,833.62/86,987.14 - Step 6: Final answer
x = 70,536.53
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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.