Finding the Fourth Proportional to 84,038.09, 115,972.59 and 45,797.65
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Solution
The fourth proportional to 84,038.09, 115,972.59 and 45,797.65 is: 63,200.77
Step by Step Solution
- Step 1: Write the proportion equation
84,038.09 : 115,972.59 = 45,797.65 : x - Step 2: Convert to fraction form
84,038.09/115,972.59 = 45,797.65/x - Step 3: Cross multiply
84,038.09x = 115,972.59 × 45,797.65 - Step 4: Simplify right side
84,038.09x = 5,311,272,174.13 - Step 5: Solve for x
x = 5,311,272,174.13/84,038.09 - Step 6: Final answer
x = 63,200.77
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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.