Finding the Fourth Proportional to 87,936.08, 121,346.06 and 56,101.56
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Solution
The fourth proportional to 87,936.08, 121,346.06 and 56,101.56 is: 77,416.50
Step by Step Solution
- Step 1: Write the proportion equation
87,936.08 : 121,346.06 = 56,101.56 : x - Step 2: Convert to fraction form
87,936.08/121,346.06 = 56,101.56/x - Step 3: Cross multiply
87,936.08x = 121,346.06 × 56,101.56 - Step 4: Simplify right side
87,936.08x = 6,807,703,265.85 - Step 5: Solve for x
x = 6,807,703,265.85/87,936.08 - Step 6: Final answer
x = 77,416.50
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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.