Finding the Fourth Proportional to 77,653.31, 116,457.44 and 30,257.84
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Solution
The fourth proportional to 77,653.31, 116,457.44 and 30,257.84 is: 45,377.99
Step by Step Solution
- Step 1: Write the proportion equation
77,653.31 : 116,457.44 = 30,257.84 : x - Step 2: Convert to fraction form
77,653.31/116,457.44 = 30,257.84/x - Step 3: Cross multiply
77,653.31x = 116,457.44 × 30,257.84 - Step 4: Simplify right side
77,653.31x = 3,523,750,726.18 - Step 5: Solve for x
x = 3,523,750,726.18/77,653.31 - Step 6: Final answer
x = 45,377.99
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.