Finding the Fourth Proportional to 74,922.99, 103,395.74 and 40,932.91
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Solution
The fourth proportional to 74,922.99, 103,395.74 and 40,932.91 is: 56,488.52
Step by Step Solution
- Step 1: Write the proportion equation
74,922.99 : 103,395.74 = 40,932.91 : x - Step 2: Convert to fraction form
74,922.99/103,395.74 = 40,932.91/x - Step 3: Cross multiply
74,922.99x = 103,395.74 × 40,932.91 - Step 4: Simplify right side
74,922.99x = 4,232,288,519.80 - Step 5: Solve for x
x = 4,232,288,519.80/74,922.99 - Step 6: Final answer
x = 56,488.52
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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.