Finding the Fourth Proportional to 92,491.20, 138,655.80 and 62,812.80
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Solution
The fourth proportional to 92,491.20, 138,655.80 and 62,812.80 is: 94,164.19
Step by Step Solution
- Step 1: Write the proportion equation
92,491.20 : 138,655.80 = 62,812.80 : x - Step 2: Convert to fraction form
92,491.20/138,655.80 = 62,812.80/x - Step 3: Cross multiply
92,491.20x = 138,655.80 × 62,812.80 - Step 4: Simplify right side
92,491.20x = 8,709,359,034.24 - Step 5: Solve for x
x = 8,709,359,034.24/92,491.20 - Step 6: Final answer
x = 94,164.19
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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.