Finding the Fourth Proportional to 86,239.13, 129,358.70 and 23,909.63
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Solution
The fourth proportional to 86,239.13, 129,358.70 and 23,909.63 is: 35,864.44
Step by Step Solution
- Step 1: Write the proportion equation
86,239.13 : 129,358.70 = 23,909.63 : x - Step 2: Convert to fraction form
86,239.13/129,358.70 = 23,909.63/x - Step 3: Cross multiply
86,239.13x = 129,358.70 × 23,909.63 - Step 4: Simplify right side
86,239.13x = 3,092,917,887.94 - Step 5: Solve for x
x = 3,092,917,887.94/86,239.13 - Step 6: Final answer
x = 35,864.44
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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.