Finding the Fourth Proportional to 112,885.05, 155,788.36 and 62,584.05
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Solution
The fourth proportional to 112,885.05, 155,788.36 and 62,584.05 is: 86,369.86
Step by Step Solution
- Step 1: Write the proportion equation
112,885.05 : 155,788.36 = 62,584.05 : x - Step 2: Convert to fraction form
112,885.05/155,788.36 = 62,584.05/x - Step 3: Cross multiply
112,885.05x = 155,788.36 × 62,584.05 - Step 4: Simplify right side
112,885.05x = 9,749,866,355.20 - Step 5: Solve for x
x = 9,749,866,355.20/112,885.05 - Step 6: Final answer
x = 86,369.86
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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.