Finding the Fourth Proportional to 94,428.99, 130,311.59 and 51,987.49
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Solution
The fourth proportional to 94,428.99, 130,311.59 and 51,987.49 is: 71,742.50
Step by Step Solution
- Step 1: Write the proportion equation
94,428.99 : 130,311.59 = 51,987.49 : x - Step 2: Convert to fraction form
94,428.99/130,311.59 = 51,987.49/x - Step 3: Cross multiply
94,428.99x = 130,311.59 × 51,987.49 - Step 4: Simplify right side
94,428.99x = 6,774,571,896.29 - Step 5: Solve for x
x = 6,774,571,896.29/94,428.99 - Step 6: Final answer
x = 71,742.50
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.