Finding the Fourth Proportional to 74,659.15, 103,027.84 and 42,826.02
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Solution
The fourth proportional to 74,659.15, 103,027.84 and 42,826.02 is: 59,098.88
Step by Step Solution
- Step 1: Write the proportion equation
74,659.15 : 103,027.84 = 42,826.02 : x - Step 2: Convert to fraction form
74,659.15/103,027.84 = 42,826.02/x - Step 3: Cross multiply
74,659.15x = 103,027.84 × 42,826.02 - Step 4: Simplify right side
74,659.15x = 4,412,272,336.40 - Step 5: Solve for x
x = 4,412,272,336.40/74,659.15 - Step 6: Final answer
x = 59,098.88
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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.