Finding the Fourth Proportional to 99,394.95, 149,013.99 and 49,447.79
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Solution
The fourth proportional to 99,394.95, 149,013.99 and 49,447.79 is: 74,132.66
Step by Step Solution
- Step 1: Write the proportion equation
99,394.95 : 149,013.99 = 49,447.79 : x - Step 2: Convert to fraction form
99,394.95/149,013.99 = 49,447.79/x - Step 3: Cross multiply
99,394.95x = 149,013.99 × 49,447.79 - Step 4: Simplify right side
99,394.95x = 7,368,411,739.51 - Step 5: Solve for x
x = 7,368,411,739.51/99,394.95 - Step 6: Final answer
x = 74,132.66
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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.