Finding the Fourth Proportional to 77,825.41, 107,406.70 and 45,558.08
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Solution
The fourth proportional to 77,825.41, 107,406.70 and 45,558.08 is: 62,874.62
Step by Step Solution
- Step 1: Write the proportion equation
77,825.41 : 107,406.70 = 45,558.08 : x - Step 2: Convert to fraction form
77,825.41/107,406.70 = 45,558.08/x - Step 3: Cross multiply
77,825.41x = 107,406.70 × 45,558.08 - Step 4: Simplify right side
77,825.41x = 4,893,242,782.98 - Step 5: Solve for x
x = 4,893,242,782.98/77,825.41 - Step 6: Final answer
x = 62,874.62
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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.