Finding the Fourth Proportional to 90,379.58, 124,695.29 and 52,133.99
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Solution
The fourth proportional to 90,379.58, 124,695.29 and 52,133.99 is: 71,928.45
Step by Step Solution
- Step 1: Write the proportion equation
90,379.58 : 124,695.29 = 52,133.99 : x - Step 2: Convert to fraction form
90,379.58/124,695.29 = 52,133.99/x - Step 3: Cross multiply
90,379.58x = 124,695.29 × 52,133.99 - Step 4: Simplify right side
90,379.58x = 6,500,862,508.77 - Step 5: Solve for x
x = 6,500,862,508.77/90,379.58 - Step 6: Final answer
x = 71,928.45
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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.