Finding the Fourth Proportional to 70,960.05, 106,448.58 and 28,831.14
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Solution
The fourth proportional to 70,960.05, 106,448.58 and 28,831.14 is: 43,250.17
Step by Step Solution
- Step 1: Write the proportion equation
70,960.05 : 106,448.58 = 28,831.14 : x - Step 2: Convert to fraction form
70,960.05/106,448.58 = 28,831.14/x - Step 3: Cross multiply
70,960.05x = 106,448.58 × 28,831.14 - Step 4: Simplify right side
70,960.05x = 3,069,033,912.78 - Step 5: Solve for x
x = 3,069,033,912.78/70,960.05 - Step 6: Final answer
x = 43,250.17
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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.