Finding the Fourth Proportional to 99,522.99, 137,336.18 and 56,491.07
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Solution
The fourth proportional to 99,522.99, 137,336.18 and 56,491.07 is: 77,954.52
Step by Step Solution
- Step 1: Write the proportion equation
99,522.99 : 137,336.18 = 56,491.07 : x - Step 2: Convert to fraction form
99,522.99/137,336.18 = 56,491.07/x - Step 3: Cross multiply
99,522.99x = 137,336.18 × 56,491.07 - Step 4: Simplify right side
99,522.99x = 7,758,266,788.78 - Step 5: Solve for x
x = 7,758,266,788.78/99,522.99 - Step 6: Final answer
x = 77,954.52
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1.5x scale
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.