Finding the Fourth Proportional to 92,934.87, 128,239.16 and 54,685.99
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Solution
The fourth proportional to 92,934.87, 128,239.16 and 54,685.99 is: 75,460.22
Step by Step Solution
- Step 1: Write the proportion equation
92,934.87 : 128,239.16 = 54,685.99 : x - Step 2: Convert to fraction form
92,934.87/128,239.16 = 54,685.99/x - Step 3: Cross multiply
92,934.87x = 128,239.16 × 54,685.99 - Step 4: Simplify right side
92,934.87x = 7,012,885,421.37 - Step 5: Solve for x
x = 7,012,885,421.37/92,934.87 - Step 6: Final answer
x = 75,460.22
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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.