Finding the Fourth Proportional to 86,237.79, 129,372.36 and 35,636.94
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Solution
The fourth proportional to 86,237.79, 129,372.36 and 35,636.94 is: 53,461.89
Step by Step Solution
- Step 1: Write the proportion equation
86,237.79 : 129,372.36 = 35,636.94 : x - Step 2: Convert to fraction form
86,237.79/129,372.36 = 35,636.94/x - Step 3: Cross multiply
86,237.79x = 129,372.36 × 35,636.94 - Step 4: Simplify right side
86,237.79x = 4,610,435,030.98 - Step 5: Solve for x
x = 4,610,435,030.98/86,237.79 - Step 6: Final answer
x = 53,461.89
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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.