Finding the Fourth Proportional to 70,304.99, 105,457.88 and 28,751.99
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Solution
The fourth proportional to 70,304.99, 105,457.88 and 28,751.99 is: 43,128.14
Step by Step Solution
- Step 1: Write the proportion equation
70,304.99 : 105,457.88 = 28,751.99 : x - Step 2: Convert to fraction form
70,304.99/105,457.88 = 28,751.99/x - Step 3: Cross multiply
70,304.99x = 105,457.88 × 28,751.99 - Step 4: Simplify right side
70,304.99x = 3,032,123,455.77 - Step 5: Solve for x
x = 3,032,123,455.77/70,304.99 - Step 6: Final answer
x = 43,128.14
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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.