Finding the Fourth Proportional to 68,667.90, 102,918.66 and 29,141.99
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Solution
The fourth proportional to 68,667.90, 102,918.66 and 29,141.99 is: 43,677.68
Step by Step Solution
- Step 1: Write the proportion equation
68,667.90 : 102,918.66 = 29,141.99 : x - Step 2: Convert to fraction form
68,667.90/102,918.66 = 29,141.99/x - Step 3: Cross multiply
68,667.90x = 102,918.66 × 29,141.99 - Step 4: Simplify right side
68,667.90x = 2,999,254,560.53 - Step 5: Solve for x
x = 2,999,254,560.53/68,667.90 - Step 6: Final answer
x = 43,677.68
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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.