Finding the Fourth Proportional to 99,644.99, 137,503.17 and 56,044.08
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Solution
The fourth proportional to 99,644.99, 137,503.17 and 56,044.08 is: 77,336.94
Step by Step Solution
- Step 1: Write the proportion equation
99,644.99 : 137,503.17 = 56,044.08 : x - Step 2: Convert to fraction form
99,644.99/137,503.17 = 56,044.08/x - Step 3: Cross multiply
99,644.99x = 137,503.17 × 56,044.08 - Step 4: Simplify right side
99,644.99x = 7,706,238,659.73 - Step 5: Solve for x
x = 7,706,238,659.73/99,644.99 - Step 6: Final answer
x = 77,336.94
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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.