Finding the Fourth Proportional to 79,027.11, 109,056.35 and 45,037.62
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Solution
The fourth proportional to 79,027.11, 109,056.35 and 45,037.62 is: 62,151.31
Step by Step Solution
- Step 1: Write the proportion equation
79,027.11 : 109,056.35 = 45,037.62 : x - Step 2: Convert to fraction form
79,027.11/109,056.35 = 45,037.62/x - Step 3: Cross multiply
79,027.11x = 109,056.35 × 45,037.62 - Step 4: Simplify right side
79,027.11x = 4,911,638,449.89 - Step 5: Solve for x
x = 4,911,638,449.89/79,027.11 - Step 6: Final answer
x = 62,151.31
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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.