Finding the Fourth Proportional to 83,315.30, 124,986.57 and 26,393.09
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Solution
The fourth proportional to 83,315.30, 124,986.57 and 26,393.09 is: 39,593.94
Step by Step Solution
- Step 1: Write the proportion equation
83,315.30 : 124,986.57 = 26,393.09 : x - Step 2: Convert to fraction form
83,315.30/124,986.57 = 26,393.09/x - Step 3: Cross multiply
83,315.30x = 124,986.57 × 26,393.09 - Step 4: Simplify right side
83,315.30x = 3,298,781,165.87 - Step 5: Solve for x
x = 3,298,781,165.87/83,315.30 - Step 6: Final answer
x = 39,593.94
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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.