Finding the Fourth Proportional to 84,298.13, 126,509.56 and 39,924.96
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Solution
The fourth proportional to 84,298.13, 126,509.56 and 39,924.96 is: 59,916.98
Step by Step Solution
- Step 1: Write the proportion equation
84,298.13 : 126,509.56 = 39,924.96 : x - Step 2: Convert to fraction form
84,298.13/126,509.56 = 39,924.96/x - Step 3: Cross multiply
84,298.13x = 126,509.56 × 39,924.96 - Step 4: Simplify right side
84,298.13x = 5,050,889,122.62 - Step 5: Solve for x
x = 5,050,889,122.62/84,298.13 - Step 6: Final answer
x = 59,916.98
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.