Finding the Fourth Proportional to 70,924.81, 106,390.86 and 18,334.75
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Solution
The fourth proportional to 70,924.81, 106,390.86 and 18,334.75 is: 27,503.07
Step by Step Solution
- Step 1: Write the proportion equation
70,924.81 : 106,390.86 = 18,334.75 : x - Step 2: Convert to fraction form
70,924.81/106,390.86 = 18,334.75/x - Step 3: Cross multiply
70,924.81x = 106,390.86 × 18,334.75 - Step 4: Simplify right side
70,924.81x = 1,950,649,820.39 - Step 5: Solve for x
x = 1,950,649,820.39/70,924.81 - Step 6: Final answer
x = 27,503.07
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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.