Finding the Fourth Proportional to 76,875.78, 115,315.04 and 24,284.81
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Solution
The fourth proportional to 76,875.78, 115,315.04 and 24,284.81 is: 36,427.65
Step by Step Solution
- Step 1: Write the proportion equation
76,875.78 : 115,315.04 = 24,284.81 : x - Step 2: Convert to fraction form
76,875.78/115,315.04 = 24,284.81/x - Step 3: Cross multiply
76,875.78x = 115,315.04 × 24,284.81 - Step 4: Simplify right side
76,875.78x = 2,800,404,185.54 - Step 5: Solve for x
x = 2,800,404,185.54/76,875.78 - Step 6: Final answer
x = 36,427.65
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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.