Finding the Fourth Proportional to 70,266.99, 105,417.35 and 20,350.54
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Solution
The fourth proportional to 70,266.99, 105,417.35 and 20,350.54 is: 30,530.69
Step by Step Solution
- Step 1: Write the proportion equation
70,266.99 : 105,417.35 = 20,350.54 : x - Step 2: Convert to fraction form
70,266.99/105,417.35 = 20,350.54/x - Step 3: Cross multiply
70,266.99x = 105,417.35 × 20,350.54 - Step 4: Simplify right side
70,266.99x = 2,145,300,104.20 - Step 5: Solve for x
x = 2,145,300,104.20/70,266.99 - Step 6: Final answer
x = 30,530.69
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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.