Finding the Fourth Proportional to 74,422.24, 102,701.04 and 40,429.84
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Solution
The fourth proportional to 74,422.24, 102,701.04 and 40,429.84 is: 55,792.28
Step by Step Solution
- Step 1: Write the proportion equation
74,422.24 : 102,701.04 = 40,429.84 : x - Step 2: Convert to fraction form
74,422.24/102,701.04 = 40,429.84/x - Step 3: Cross multiply
74,422.24x = 102,701.04 × 40,429.84 - Step 4: Simplify right side
74,422.24x = 4,152,186,615.03 - Step 5: Solve for x
x = 4,152,186,615.03/74,422.24 - Step 6: Final answer
x = 55,792.28
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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.