Finding the Fourth Proportional to 90,461.37, 124,754.97 and 56,472.99
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Solution
The fourth proportional to 90,461.37, 124,754.97 and 56,472.99 is: 77,881.71
Step by Step Solution
- Step 1: Write the proportion equation
90,461.37 : 124,754.97 = 56,472.99 : x - Step 2: Convert to fraction form
90,461.37/124,754.97 = 56,472.99/x - Step 3: Cross multiply
90,461.37x = 124,754.97 × 56,472.99 - Step 4: Simplify right side
90,461.37x = 7,045,285,890.90 - Step 5: Solve for x
x = 7,045,285,890.90/90,461.37 - Step 6: Final answer
x = 77,881.71
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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.