Finding the Fourth Proportional to 80,913.48, 121,210.02 and 38,160.36
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Solution
The fourth proportional to 80,913.48, 121,210.02 and 38,160.36 is: 57,164.99
Step by Step Solution
- Step 1: Write the proportion equation
80,913.48 : 121,210.02 = 38,160.36 : x - Step 2: Convert to fraction form
80,913.48/121,210.02 = 38,160.36/x - Step 3: Cross multiply
80,913.48x = 121,210.02 × 38,160.36 - Step 4: Simplify right side
80,913.48x = 4,625,417,998.81 - Step 5: Solve for x
x = 4,625,417,998.81/80,913.48 - Step 6: Final answer
x = 57,164.99
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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.