Finding the Fourth Proportional to 80,038.92, 120,071.41 and 37,386.99
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Solution
The fourth proportional to 80,038.92, 120,071.41 and 37,386.99 is: 56,086.57
Step by Step Solution
- Step 1: Write the proportion equation
80,038.92 : 120,071.41 = 37,386.99 : x - Step 2: Convert to fraction form
80,038.92/120,071.41 = 37,386.99/x - Step 3: Cross multiply
80,038.92x = 120,071.41 × 37,386.99 - Step 4: Simplify right side
80,038.92x = 4,489,108,511.49 - Step 5: Solve for x
x = 4,489,108,511.49/80,038.92 - Step 6: Final answer
x = 56,086.57
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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.