Finding the Fourth Proportional to 74,011.24, 102,133.42 and 40,476.52
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Solution
The fourth proportional to 74,011.24, 102,133.42 and 40,476.52 is: 55,856.45
Step by Step Solution
- Step 1: Write the proportion equation
74,011.24 : 102,133.42 = 40,476.52 : x - Step 2: Convert to fraction form
74,011.24/102,133.42 = 40,476.52/x - Step 3: Cross multiply
74,011.24x = 102,133.42 × 40,476.52 - Step 4: Simplify right side
74,011.24x = 4,134,005,417.30 - Step 5: Solve for x
x = 4,134,005,417.30/74,011.24 - Step 6: Final answer
x = 55,856.45
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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.