Finding the Fourth Proportional to 126,579.24, 174,677.58 and 69,989.40
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Solution
The fourth proportional to 126,579.24, 174,677.58 and 69,989.40 is: 96,584.39
Step by Step Solution
- Step 1: Write the proportion equation
126,579.24 : 174,677.58 = 69,989.40 : x - Step 2: Convert to fraction form
126,579.24/174,677.58 = 69,989.40/x - Step 3: Cross multiply
126,579.24x = 174,677.58 × 69,989.40 - Step 4: Simplify right side
126,579.24x = 12,225,579,017.65 - Step 5: Solve for x
x = 12,225,579,017.65/126,579.24 - Step 6: Final answer
x = 96,584.39
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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.