Finding the Fourth Proportional to 70,899.33, 106,340.76 and 18,304.68
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Solution
The fourth proportional to 70,899.33, 106,340.76 and 18,304.68 is: 27,454.89
Step by Step Solution
- Step 1: Write the proportion equation
70,899.33 : 106,340.76 = 18,304.68 : x - Step 2: Convert to fraction form
70,899.33/106,340.76 = 18,304.68/x - Step 3: Cross multiply
70,899.33x = 106,340.76 × 18,304.68 - Step 4: Simplify right side
70,899.33x = 1,946,533,582.76 - Step 5: Solve for x
x = 1,946,533,582.76/70,899.33 - Step 6: Final answer
x = 27,454.89
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1.5x scale
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.