Finding the Fourth Proportional to 99,448.74, 149,173.52 and 40,285.53
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Solution
The fourth proportional to 99,448.74, 149,173.52 and 40,285.53 is: 60,428.46
Step by Step Solution
- Step 1: Write the proportion equation
99,448.74 : 149,173.52 = 40,285.53 : x - Step 2: Convert to fraction form
99,448.74/149,173.52 = 40,285.53/x - Step 3: Cross multiply
99,448.74x = 149,173.52 × 40,285.53 - Step 4: Simplify right side
99,448.74x = 6,009,534,688.10 - Step 5: Solve for x
x = 6,009,534,688.10/99,448.74 - Step 6: Final answer
x = 60,428.46
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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.