Finding the Fourth Proportional to 86,373.78, 129,565.28 and 27,214.08
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Solution
The fourth proportional to 86,373.78, 129,565.28 and 27,214.08 is: 40,822.57
Step by Step Solution
- Step 1: Write the proportion equation
86,373.78 : 129,565.28 = 27,214.08 : x - Step 2: Convert to fraction form
86,373.78/129,565.28 = 27,214.08/x - Step 3: Cross multiply
86,373.78x = 129,565.28 × 27,214.08 - Step 4: Simplify right side
86,373.78x = 3,525,999,895.14 - Step 5: Solve for x
x = 3,525,999,895.14/86,373.78 - Step 6: Final answer
x = 40,822.57
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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.