Finding the Fourth Proportional to 86,381.91, 129,264.93 and 59,733.32
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Solution
The fourth proportional to 86,381.91, 129,264.93 and 59,733.32 is: 89,387.03
Step by Step Solution
- Step 1: Write the proportion equation
86,381.91 : 129,264.93 = 59,733.32 : x - Step 2: Convert to fraction form
86,381.91/129,264.93 = 59,733.32/x - Step 3: Cross multiply
86,381.91x = 129,264.93 × 59,733.32 - Step 4: Simplify right side
86,381.91x = 7,721,422,782.14 - Step 5: Solve for x
x = 7,721,422,782.14/86,381.91 - Step 6: Final answer
x = 89,387.03
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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.