Finding the Fourth Proportional to 99,931.71, 137,965.82 and 62,256.99
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Solution
The fourth proportional to 99,931.71, 137,965.82 and 62,256.99 is: 85,952.06
Step by Step Solution
- Step 1: Write the proportion equation
99,931.71 : 137,965.82 = 62,256.99 : x - Step 2: Convert to fraction form
99,931.71/137,965.82 = 62,256.99/x - Step 3: Cross multiply
99,931.71x = 137,965.82 × 62,256.99 - Step 4: Simplify right side
99,931.71x = 8,589,336,141.90 - Step 5: Solve for x
x = 8,589,336,141.90/99,931.71 - Step 6: Final answer
x = 85,952.06
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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.