Finding the Fourth Proportional to 70,974.76, 106,408.68 and 42,888.84
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Solution
The fourth proportional to 70,974.76, 106,408.68 and 42,888.84 is: 64,300.96
Step by Step Solution
- Step 1: Write the proportion equation
70,974.76 : 106,408.68 = 42,888.84 : x - Step 2: Convert to fraction form
70,974.76/106,408.68 = 42,888.84/x - Step 3: Cross multiply
70,974.76x = 106,408.68 × 42,888.84 - Step 4: Simplify right side
70,974.76x = 4,563,744,851.13 - Step 5: Solve for x
x = 4,563,744,851.13/70,974.76 - Step 6: Final answer
x = 64,300.96
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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.