Finding the Fourth Proportional to 77,143.58, 106,467.99 and 43,153.95
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Solution
The fourth proportional to 77,143.58, 106,467.99 and 43,153.95 is: 59,557.96
Step by Step Solution
- Step 1: Write the proportion equation
77,143.58 : 106,467.99 = 43,153.95 : x - Step 2: Convert to fraction form
77,143.58/106,467.99 = 43,153.95/x - Step 3: Cross multiply
77,143.58x = 106,467.99 × 43,153.95 - Step 4: Simplify right side
77,143.58x = 4,594,514,554.49 - Step 5: Solve for x
x = 4,594,514,554.49/77,143.58 - Step 6: Final answer
x = 59,557.96
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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.