Finding the Fourth Proportional to 74,056.19, 102,197.12 and 40,064.58
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Solution
The fourth proportional to 74,056.19, 102,197.12 and 40,064.58 is: 55,288.89
Step by Step Solution
- Step 1: Write the proportion equation
74,056.19 : 102,197.12 = 40,064.58 : x - Step 2: Convert to fraction form
74,056.19/102,197.12 = 40,064.58/x - Step 3: Cross multiply
74,056.19x = 102,197.12 × 40,064.58 - Step 4: Simplify right side
74,056.19x = 4,094,484,489.69 - Step 5: Solve for x
x = 4,094,484,489.69/74,056.19 - Step 6: Final answer
x = 55,288.89
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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.