Finding the Fourth Proportional to 91,432.18, 126,254.28 and 57,497.46
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Solution
The fourth proportional to 91,432.18, 126,254.28 and 57,497.46 is: 79,395.46
Step by Step Solution
- Step 1: Write the proportion equation
91,432.18 : 126,254.28 = 57,497.46 : x - Step 2: Convert to fraction form
91,432.18/126,254.28 = 57,497.46/x - Step 3: Cross multiply
91,432.18x = 126,254.28 × 57,497.46 - Step 4: Simplify right side
91,432.18x = 7,259,300,414.13 - Step 5: Solve for x
x = 7,259,300,414.13/91,432.18 - Step 6: Final answer
x = 79,395.46
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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.